diff --git a/.github/ISSUE_TEMPLATE/bug_report.yaml b/.github/ISSUE_TEMPLATE/bug_report.yaml
index 6ce1aba4f8..138d85736d 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yaml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yaml
@@ -1,6 +1,7 @@
 name: Bug report
 description: Report some misbehaviour in the mod
 labels: [ bug ]
+type: bug
 body:
 - type: dropdown
   id: mc-version
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
index e3ab2ee46f..784559ead6 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -2,6 +2,7 @@
 name: Feature request
 about: Suggest an idea or improvement
 labels: enhancement
+type: feature
 ---
 
 <!--
diff --git a/buildSrc/src/main/kotlin/cc/tweaked/gradle/CCTweakedExtension.kt b/buildSrc/src/main/kotlin/cc/tweaked/gradle/CCTweakedExtension.kt
index 7f73f04fa6..2c0228ce67 100644
--- a/buildSrc/src/main/kotlin/cc/tweaked/gradle/CCTweakedExtension.kt
+++ b/buildSrc/src/main/kotlin/cc/tweaked/gradle/CCTweakedExtension.kt
@@ -10,9 +10,7 @@ import org.gradle.api.GradleException
 import org.gradle.api.NamedDomainObjectProvider
 import org.gradle.api.Project
 import org.gradle.api.Task
-import org.gradle.api.artifacts.Dependency
 import org.gradle.api.plugins.JavaPluginExtension
-import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.Provider
 import org.gradle.api.provider.SetProperty
 import org.gradle.api.tasks.SourceSet
@@ -33,6 +31,10 @@ import java.net.URI
 import java.util.regex.Pattern
 
 abstract class CCTweakedExtension(private val project: Project) {
+    /** Get the hash of the latest git commit. */
+    val gitHash: Provider<String> =
+        gitProvider("<no git commit>", listOf("rev-parse", "HEAD")) { it.trim() }
+
     /** Get the current git branch. */
     val gitBranch: Provider<String> =
         gitProvider("<no git branch>", listOf("rev-parse", "--abbrev-ref", "HEAD")) { it.trim() }
@@ -164,6 +166,7 @@ abstract class CCTweakedExtension(private val project: Project) {
             jacoco.applyTo(this)
 
             extensions.configure(JacocoTaskExtension::class.java) {
+                includes = listOf("dan200.computercraft.*")
                 excludes = listOf(
                     "dan200.computercraft.mixin.*", // Exclude mixins, as they're not executed at runtime.
                     "dan200.computercraft.shared.Capabilities$*", // Exclude capability tokens, as Forge rewrites them.
diff --git a/projects/common-api/src/main/java/dan200/computercraft/api/network/wired/WiredElement.java b/projects/common-api/src/main/java/dan200/computercraft/api/network/wired/WiredElement.java
index 01d197ebdc..947f43886b 100644
--- a/projects/common-api/src/main/java/dan200/computercraft/api/network/wired/WiredElement.java
+++ b/projects/common-api/src/main/java/dan200/computercraft/api/network/wired/WiredElement.java
@@ -19,8 +19,8 @@
  */
 public interface WiredElement extends WiredSender {
     /**
-     * Called when objects on the network change. This may occur when network nodes are added or removed, or when
-     * peripherals change.
+     * Called when peripherals on the network change. This may occur when network nodes are added or removed, or when
+     * peripherals are attached or detached from a modem.
      *
      * @param change The change which occurred.
      * @see WiredNetworkChange
diff --git a/projects/common/src/client/java/dan200/computercraft/client/gui/ClientInputHandler.java b/projects/common/src/client/java/dan200/computercraft/client/gui/ClientInputHandler.java
index a69fe39c01..7fd121a446 100644
--- a/projects/common/src/client/java/dan200/computercraft/client/gui/ClientInputHandler.java
+++ b/projects/common/src/client/java/dan200/computercraft/client/gui/ClientInputHandler.java
@@ -10,10 +10,10 @@
 import dan200.computercraft.shared.network.server.ComputerActionServerMessage;
 import dan200.computercraft.shared.network.server.KeyEventServerMessage;
 import dan200.computercraft.shared.network.server.MouseEventServerMessage;
-import dan200.computercraft.shared.network.server.QueueEventServerMessage;
+import dan200.computercraft.shared.network.server.PasteEventComputerMessage;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 
-import javax.annotation.Nullable;
+import java.nio.ByteBuffer;
 
 /**
  * An {@link InputHandler} for use on the client.
@@ -27,6 +27,11 @@ public ClientInputHandler(AbstractContainerMenu menu) {
         this.menu = menu;
     }
 
+    @Override
+    public void terminate() {
+        ClientNetworking.sendToServer(new ComputerActionServerMessage(menu, ComputerActionServerMessage.Action.TERMINATE));
+    }
+
     @Override
     public void turnOn() {
         ClientNetworking.sendToServer(new ComputerActionServerMessage(menu, ComputerActionServerMessage.Action.TURN_ON));
@@ -42,11 +47,6 @@ public void reboot() {
         ClientNetworking.sendToServer(new ComputerActionServerMessage(menu, ComputerActionServerMessage.Action.REBOOT));
     }
 
-    @Override
-    public void queueEvent(String event, @Nullable Object[] arguments) {
-        ClientNetworking.sendToServer(new QueueEventServerMessage(menu, event, arguments));
-    }
-
     @Override
     public void keyDown(int key, boolean repeat) {
         ClientNetworking.sendToServer(new KeyEventServerMessage(menu, repeat ? KeyEventServerMessage.Action.REPEAT : KeyEventServerMessage.Action.DOWN, key));
@@ -57,6 +57,16 @@ public void keyUp(int key) {
         ClientNetworking.sendToServer(new KeyEventServerMessage(menu, KeyEventServerMessage.Action.UP, key));
     }
 
+    @Override
+    public void charTyped(byte chr) {
+        ClientNetworking.sendToServer(new KeyEventServerMessage(menu, KeyEventServerMessage.Action.CHAR, chr));
+    }
+
+    @Override
+    public void paste(ByteBuffer contents) {
+        ClientNetworking.sendToServer(new PasteEventComputerMessage(menu, contents));
+    }
+
     @Override
     public void mouseClick(int button, int x, int y) {
         ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.Action.CLICK, button, x, y));
diff --git a/projects/common/src/client/java/dan200/computercraft/client/gui/GuiSprites.java b/projects/common/src/client/java/dan200/computercraft/client/gui/GuiSprites.java
index 7428196c96..16b84e3889 100644
--- a/projects/common/src/client/java/dan200/computercraft/client/gui/GuiSprites.java
+++ b/projects/common/src/client/java/dan200/computercraft/client/gui/GuiSprites.java
@@ -34,8 +34,8 @@ public final class GuiSprites extends TextureAtlasHolder {
 
     private static ButtonTextures button(String name) {
         return new ButtonTextures(
-            ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "gui/buttons/" + name),
-            ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "gui/buttons/" + name + "_hover")
+            ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "buttons/" + name),
+            ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "buttons/" + name + "_hover")
         );
     }
 
@@ -96,12 +96,8 @@ public static ComputerTextures getComputerTextures(ComputerFamily family) {
      * @param active The texture for the button when it is active (hovered or focused).
      */
     public record ButtonTextures(ResourceLocation normal, ResourceLocation active) {
-        public TextureAtlasSprite get(boolean active) {
-            return GuiSprites.get(active ? this.active : normal);
-        }
-
-        public Stream<ResourceLocation> textures() {
-            return Stream.of(normal, active);
+        public ResourceLocation get(boolean isActive) {
+            return isActive ? active : normal;
         }
     }
 
diff --git a/projects/common/src/client/java/dan200/computercraft/client/gui/TurtleScreen.java b/projects/common/src/client/java/dan200/computercraft/client/gui/TurtleScreen.java
index 381bd62197..4ab08318c9 100644
--- a/projects/common/src/client/java/dan200/computercraft/client/gui/TurtleScreen.java
+++ b/projects/common/src/client/java/dan200/computercraft/client/gui/TurtleScreen.java
@@ -26,6 +26,9 @@ public class TurtleScreen extends AbstractComputerScreen<TurtleMenu> {
     private static final ResourceLocation BACKGROUND_NORMAL = ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "textures/gui/turtle_normal.png");
     private static final ResourceLocation BACKGROUND_ADVANCED = ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "textures/gui/turtle_advanced.png");
 
+    private static final ResourceLocation SELECTED_NORMAL = ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "turtle_normal_selected_slot");
+    private static final ResourceLocation SELECTED_ADVANCED = ResourceLocation.fromNamespaceAndPath(ComputerCraftAPI.MOD_ID, "turtle_advanced_selected_slot");
+
     private static final int TEX_WIDTH = 278;
     private static final int TEX_HEIGHT = 217;
 
@@ -54,9 +57,9 @@ protected void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, in
         if (slot >= 0) {
             var slotX = slot % 4;
             var slotY = slot / 4;
-            graphics.blit(texture,
-                leftPos + TURTLE_START_X - 2 + slotX * 18, topPos + PLAYER_START_Y - 2 + slotY * 18, 0,
-                0, 217, 24, 24, FULL_TEX_SIZE, FULL_TEX_SIZE
+            graphics.blitSprite(
+                advanced ? SELECTED_ADVANCED : SELECTED_NORMAL,
+                leftPos + TURTLE_START_X - 2 + slotX * 18, topPos + PLAYER_START_Y - 2 + slotY * 18, 0, 22, 22
             );
         }
 
diff --git a/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/ComputerSidebar.java b/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/ComputerSidebar.java
index 8ab38d9e84..13437076d9 100644
--- a/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/ComputerSidebar.java
+++ b/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/ComputerSidebar.java
@@ -55,7 +55,7 @@ public static void addButtons(BooleanSupplier isOn, InputHandler input, Consumer
         add.accept(new DynamicImageButton(
             x, y, ICON_WIDTH, ICON_HEIGHT,
             GuiSprites.TERMINATE::get,
-            b -> input.queueEvent("terminate"),
+            b -> input.terminate(),
             new HintedMessage(
                 Component.translatable("gui.computercraft.tooltip.terminate"),
                 Component.translatable("gui.computercraft.tooltip.terminate.key")
diff --git a/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/DynamicImageButton.java b/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/DynamicImageButton.java
index 88f5f02d7c..11b11694d2 100644
--- a/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/DynamicImageButton.java
+++ b/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/DynamicImageButton.java
@@ -10,8 +10,8 @@
 import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.Button;
 import net.minecraft.client.gui.components.Tooltip;
-import net.minecraft.client.renderer.texture.TextureAtlasSprite;
 import net.minecraft.network.chat.Component;
+import net.minecraft.resources.ResourceLocation;
 
 import javax.annotation.Nullable;
 import java.util.function.Supplier;
@@ -21,11 +21,11 @@
  * dynamically.
  */
 public class DynamicImageButton extends Button {
-    private final Boolean2ObjectFunction<TextureAtlasSprite> texture;
+    private final Boolean2ObjectFunction<ResourceLocation> texture;
     private final Supplier<HintedMessage> message;
 
     public DynamicImageButton(
-        int x, int y, int width, int height, Boolean2ObjectFunction<TextureAtlasSprite> texture, OnPress onPress,
+        int x, int y, int width, int height, Boolean2ObjectFunction<ResourceLocation> texture, OnPress onPress,
         HintedMessage message
     ) {
         this(x, y, width, height, texture, onPress, () -> message);
@@ -33,7 +33,7 @@ public DynamicImageButton(
 
     public DynamicImageButton(
         int x, int y, int width, int height,
-        Boolean2ObjectFunction<TextureAtlasSprite> texture,
+        Boolean2ObjectFunction<ResourceLocation> texture,
         OnPress onPress, Supplier<HintedMessage> message
     ) {
         super(x, y, width, height, Component.empty(), onPress, DEFAULT_NARRATION);
@@ -50,7 +50,7 @@ public void renderWidget(GuiGraphics graphics, int mouseX, int mouseY, float par
         var texture = this.texture.get(isHoveredOrFocused());
 
         RenderSystem.disableDepthTest();
-        graphics.blit(getX(), getY(), 0, width, height, texture);
+        graphics.blitSprite(texture, getX(), getY(), 0, width, height);
         RenderSystem.enableDepthTest();
     }
 
diff --git a/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/TerminalWidget.java b/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/TerminalWidget.java
index 50a0f35d46..61f3203f1d 100644
--- a/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/TerminalWidget.java
+++ b/projects/common/src/client/java/dan200/computercraft/client/gui/widgets/TerminalWidget.java
@@ -69,11 +69,8 @@ public TerminalWidget(Terminal terminal, InputHandler computer, int x, int y) {
 
     @Override
     public boolean charTyped(char ch, int modifiers) {
-        if (ch >= 32 && ch <= 126 || ch >= 160 && ch <= 255) {
-            // Queue the char event for any printable chars in byte range
-            computer.queueEvent("char", new Object[]{ Character.toString(ch) });
-        }
-
+        var terminalChar = StringUtil.unicodeToTerminal(ch);
+        if (StringUtil.isTypableChar(terminalChar)) computer.charTyped(terminalChar);
         return true;
     }
 
@@ -110,8 +107,8 @@ public boolean keyPressed(int key, int scancode, int modifiers) {
     }
 
     private void paste() {
-        var clipboard = StringUtil.normaliseClipboardString(Minecraft.getInstance().keyboardHandler.getClipboard());
-        if (!clipboard.isEmpty()) computer.queueEvent("paste", new Object[]{ clipboard });
+        var clipboard = StringUtil.getClipboardString(Minecraft.getInstance().keyboardHandler.getClipboard());
+        if (clipboard.remaining() > 0) computer.paste(clipboard);
     }
 
     @Override
@@ -220,7 +217,7 @@ private boolean hasMouseSupport() {
 
     public void update() {
         if (terminateTimer >= 0 && terminateTimer < TERMINATE_TIME && (terminateTimer += 0.05f) > TERMINATE_TIME) {
-            computer.queueEvent("terminate");
+            computer.terminate();
         }
 
         if (shutdownTimer >= 0 && shutdownTimer < TERMINATE_TIME && (shutdownTimer += 0.05f) > TERMINATE_TIME) {
diff --git a/projects/common/src/client/java/dan200/computercraft/client/render/PocketItemRenderer.java b/projects/common/src/client/java/dan200/computercraft/client/render/PocketItemRenderer.java
index 60eaa1bcdd..ea0f6869d0 100644
--- a/projects/common/src/client/java/dan200/computercraft/client/render/PocketItemRenderer.java
+++ b/projects/common/src/client/java/dan200/computercraft/client/render/PocketItemRenderer.java
@@ -39,8 +39,8 @@ protected void renderItem(PoseStack transform, MultiBufferSource bufferSource, I
 
         int termWidth, termHeight;
         if (terminal == null) {
-            termWidth = Config.pocketTermWidth;
-            termHeight = Config.pocketTermHeight;
+            termWidth = Config.DEFAULT_POCKET_TERM_WIDTH;
+            termHeight = Config.DEFAULT_POCKET_TERM_HEIGHT;
         } else {
             termWidth = terminal.getWidth();
             termHeight = terminal.getHeight();
diff --git a/projects/common/src/datagen/java/dan200/computercraft/data/DataProviders.java b/projects/common/src/datagen/java/dan200/computercraft/data/DataProviders.java
index 55c86db8d7..6af5595136 100644
--- a/projects/common/src/datagen/java/dan200/computercraft/data/DataProviders.java
+++ b/projects/common/src/datagen/java/dan200/computercraft/data/DataProviders.java
@@ -74,10 +74,6 @@ public static void add(GeneratorSink generator) {
                 LecternPrintoutModel.TEXTURE
             )));
             out.accept(GuiSprites.SPRITE_SHEET, makeSprites(
-                // Buttons
-                GuiSprites.TURNED_OFF.textures(),
-                GuiSprites.TURNED_ON.textures(),
-                GuiSprites.TERMINATE.textures(),
                 // Computers
                 GuiSprites.COMPUTER_NORMAL.textures(),
                 GuiSprites.COMPUTER_ADVANCED.textures(),
diff --git a/projects/common/src/generated/resources/assets/computercraft/atlases/gui.json b/projects/common/src/generated/resources/assets/computercraft/atlases/gui.json
index 8ad965c9d0..cbb2c9ee1e 100644
--- a/projects/common/src/generated/resources/assets/computercraft/atlases/gui.json
+++ b/projects/common/src/generated/resources/assets/computercraft/atlases/gui.json
@@ -1,11 +1,5 @@
 {
   "sources": [
-    {"type": "minecraft:single", "resource": "computercraft:gui/buttons/turned_off"},
-    {"type": "minecraft:single", "resource": "computercraft:gui/buttons/turned_off_hover"},
-    {"type": "minecraft:single", "resource": "computercraft:gui/buttons/turned_on"},
-    {"type": "minecraft:single", "resource": "computercraft:gui/buttons/turned_on_hover"},
-    {"type": "minecraft:single", "resource": "computercraft:gui/buttons/terminate"},
-    {"type": "minecraft:single", "resource": "computercraft:gui/buttons/terminate_hover"},
     {"type": "minecraft:single", "resource": "computercraft:gui/border_normal"},
     {"type": "minecraft:single", "resource": "computercraft:gui/pocket_bottom_normal"},
     {"type": "minecraft:single", "resource": "computercraft:gui/sidebar_normal"},
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/ComputerBlockEntity.java b/projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/ComputerBlockEntity.java
index 857b0a0e25..ab6f90e7bb 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/ComputerBlockEntity.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/ComputerBlockEntity.java
@@ -11,8 +11,7 @@
 import dan200.computercraft.shared.computer.core.ComputerState;
 import dan200.computercraft.shared.computer.core.ServerComputer;
 import dan200.computercraft.shared.computer.inventory.ComputerMenuWithoutInventory;
-import dan200.computercraft.shared.config.Config;
-import dan200.computercraft.shared.util.ComponentMap;
+import dan200.computercraft.shared.config.ConfigSpec;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.server.level.ServerLevel;
@@ -33,10 +32,9 @@ public ComputerBlockEntity(BlockEntityType<? extends ComputerBlockEntity> type,
 
     @Override
     protected ServerComputer createComputer(int id) {
-        return new ServerComputer(
-            (ServerLevel) getLevel(), getBlockPos(), id, label,
-            getFamily(), Config.computerTermWidth, Config.computerTermHeight,
-            ComponentMap.empty()
+        return new ServerComputer((ServerLevel) getLevel(), getBlockPos(), ServerComputer.properties(id, getFamily())
+            .label(getLabel())
+            .terminalSize(ConfigSpec.computerTermWidth.get(), ConfigSpec.computerTermHeight.get())
         );
     }
 
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/computer/core/InputHandler.java b/projects/common/src/main/java/dan200/computercraft/shared/computer/core/InputHandler.java
index c5108e8740..dbdd23ce52 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/computer/core/InputHandler.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/computer/core/InputHandler.java
@@ -6,44 +6,33 @@
 
 import dan200.computercraft.shared.computer.menu.ServerInputHandler;
 
-import javax.annotation.Nullable;
+import java.nio.ByteBuffer;
 
 /**
- * Handles user-provided input, forwarding it to a computer. This is used
+ * Handles user-provided input, forwarding it to a computer. This describes the "shape" of both the client-and
+ * server-side input handlers.
  *
  * @see ServerInputHandler
  * @see ServerComputer
  */
 public interface InputHandler {
-    void queueEvent(String event, @Nullable Object[] arguments);
+    void keyDown(int key, boolean repeat);
 
-    default void queueEvent(String event) {
-        queueEvent(event, null);
-    }
+    void keyUp(int key);
 
-    default void keyDown(int key, boolean repeat) {
-        queueEvent("key", new Object[]{ key, repeat });
-    }
+    void charTyped(byte chr);
 
-    default void keyUp(int key) {
-        queueEvent("key_up", new Object[]{ key });
-    }
+    void paste(ByteBuffer contents);
 
-    default void mouseClick(int button, int x, int y) {
-        queueEvent("mouse_click", new Object[]{ button, x, y });
-    }
+    void mouseClick(int button, int x, int y);
 
-    default void mouseUp(int button, int x, int y) {
-        queueEvent("mouse_up", new Object[]{ button, x, y });
-    }
+    void mouseUp(int button, int x, int y);
 
-    default void mouseDrag(int button, int x, int y) {
-        queueEvent("mouse_drag", new Object[]{ button, x, y });
-    }
+    void mouseDrag(int button, int x, int y);
 
-    default void mouseScroll(int direction, int x, int y) {
-        queueEvent("mouse_scroll", new Object[]{ direction, x, y });
-    }
+    void mouseScroll(int direction, int x, int y);
+
+    void terminate();
 
     void shutdown();
 
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/computer/core/ServerComputer.java b/projects/common/src/main/java/dan200/computercraft/shared/computer/core/ServerComputer.java
index 2fc559ef45..d41ee1de89 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/computer/core/ServerComputer.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/computer/core/ServerComputer.java
@@ -6,12 +6,14 @@
 
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.component.AdminComputer;
+import dan200.computercraft.api.component.ComputerComponent;
 import dan200.computercraft.api.component.ComputerComponents;
 import dan200.computercraft.api.filesystem.WritableMount;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.api.peripheral.WorkMonitor;
 import dan200.computercraft.core.computer.Computer;
 import dan200.computercraft.core.computer.ComputerEnvironment;
+import dan200.computercraft.core.computer.ComputerEvents;
 import dan200.computercraft.core.computer.ComputerSide;
 import dan200.computercraft.core.metrics.MetricsObserver;
 import dan200.computercraft.impl.ApiFactories;
@@ -34,7 +36,7 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Function;
 
-public class ServerComputer implements InputHandler, ComputerEnvironment {
+public class ServerComputer implements ComputerEnvironment, ComputerEvents.Receiver {
     private final UUID instanceUUID = UUID.randomUUID();
 
     private ServerLevel level;
@@ -49,16 +51,21 @@ public class ServerComputer implements InputHandler, ComputerEnvironment {
 
     private int ticksSincePing;
 
+    @Deprecated
     public ServerComputer(
         ServerLevel level, BlockPos position, int computerID, @Nullable String label, ComputerFamily family, int terminalWidth, int terminalHeight,
         ComponentMap baseComponents
     ) {
+        this(level, position, properties(computerID, family).label(label).terminalSize(terminalWidth, terminalHeight).addComponents(baseComponents));
+    }
+
+    public ServerComputer(ServerLevel level, BlockPos position, Properties properties) {
         this.level = level;
         this.position = position;
-        this.family = family;
+        this.family = properties.family;
 
         var context = ServerContext.get(level.getServer());
-        terminal = new NetworkedTerminal(terminalWidth, terminalHeight, family != ComputerFamily.NORMAL, this::markTerminalChanged);
+        terminal = new NetworkedTerminal(properties.terminalWidth, properties.terminalHeight, family != ComputerFamily.NORMAL, this::markTerminalChanged);
         metrics = context.metrics().createMetricObserver(this);
 
         var componentBuilder = ComponentMap.builder();
@@ -67,11 +74,11 @@ public ServerComputer(
             componentBuilder.add(ComputerComponents.ADMIN_COMPUTER, new AdminComputer() {
             });
         }
-        componentBuilder.add(baseComponents);
+        componentBuilder.add(properties.components.build());
         var components = componentBuilder.build();
 
-        computer = new Computer(context.computerContext(), this, terminal, computerID);
-        computer.setLabel(label);
+        computer = new Computer(context.computerContext(), this, terminal, properties.computerID);
+        computer.setLabel(properties.label);
 
         // Load in the externally registered APIs.
         for (var factory : ApiFactories.getAll()) {
@@ -84,24 +91,24 @@ public ServerComputer(
         }
     }
 
-    public ComputerFamily getFamily() {
+    public final ComputerFamily getFamily() {
         return family;
     }
 
-    public ServerLevel getLevel() {
+    public final ServerLevel getLevel() {
         return level;
     }
 
-    public BlockPos getPosition() {
+    public final BlockPos getPosition() {
         return position;
     }
 
-    public void setPosition(ServerLevel level, BlockPos pos) {
+    public final void setPosition(ServerLevel level, BlockPos pos) {
         this.level = level;
         position = pos.immutable();
     }
 
-    protected void markTerminalChanged() {
+    protected final void markTerminalChanged() {
         terminalChanged.set(true);
     }
 
@@ -115,11 +122,11 @@ protected void onTerminalChanged() {
         sendToAllInteracting(c -> new ComputerTerminalClientMessage(c, getTerminalState()));
     }
 
-    public TerminalState getTerminalState() {
+    public final TerminalState getTerminalState() {
         return TerminalState.create(terminal);
     }
 
-    public void keepAlive() {
+    public final void keepAlive() {
         ticksSincePing = 0;
     }
 
@@ -132,7 +139,7 @@ boolean hasTimedOut() {
      *
      * @return What sides on the computer have changed.
      */
-    public int pollRedstoneChanges() {
+    public final int pollRedstoneChanges() {
         return computer.pollRedstoneChanges();
     }
 
@@ -145,7 +152,7 @@ void unload() {
         computer.unload();
     }
 
-    public void close() {
+    public final void close() {
         unload();
         ServerContext.get(level.getServer()).registry().remove(this);
     }
@@ -165,7 +172,7 @@ private void sendToAllInteracting(Function<AbstractContainerMenu, NetworkMessage
         var server = level.getServer();
 
         for (var player : server.getPlayerList().getPlayers()) {
-            if (player.containerMenu instanceof ComputerMenu && ((ComputerMenu) player.containerMenu).getComputer() == this) {
+            if (player.containerMenu instanceof ComputerMenu menu && menu.getComputer() == this) {
                 ServerNetworking.sendToPlayer(createPacket.apply(player.containerMenu), player);
             }
         }
@@ -174,93 +181,136 @@ private void sendToAllInteracting(Function<AbstractContainerMenu, NetworkMessage
     protected void onRemoved() {
     }
 
-    public UUID getInstanceUUID() {
+    public final UUID getInstanceUUID() {
         return instanceUUID;
     }
 
-    public int getID() {
+    public final int getID() {
         return computer.getID();
     }
 
-    public @Nullable String getLabel() {
+    public final @Nullable String getLabel() {
         return computer.getLabel();
     }
 
-    public boolean isOn() {
+    public final boolean isOn() {
         return computer.isOn();
     }
 
-    public ComputerState getState() {
+    public final ComputerState getState() {
         if (!computer.isOn()) return ComputerState.OFF;
         return computer.isBlinking() ? ComputerState.BLINKING : ComputerState.ON;
     }
 
-    @Override
-    public void turnOn() {
+    public final void turnOn() {
         computer.turnOn();
     }
 
-    @Override
-    public void shutdown() {
+    public final void shutdown() {
         computer.shutdown();
     }
 
-    @Override
-    public void reboot() {
+    public final void reboot() {
         computer.reboot();
     }
 
     @Override
-    public void queueEvent(String event, @Nullable Object[] arguments) {
+    public final void queueEvent(String event, @Nullable Object[] arguments) {
         computer.queueEvent(event, arguments);
     }
 
-    public int getRedstoneOutput(ComputerSide side) {
+    public final void queueEvent(String event) {
+        queueEvent(event, null);
+    }
+
+    public final int getRedstoneOutput(ComputerSide side) {
         return computer.isOn() ? computer.getRedstone().getExternalOutput(side) : 0;
     }
 
-    public void setRedstoneInput(ComputerSide side, int level, int bundledState) {
+    public final void setRedstoneInput(ComputerSide side, int level, int bundledState) {
         computer.getRedstone().setInput(side, level, bundledState);
     }
 
-    public int getBundledRedstoneOutput(ComputerSide side) {
+    public final int getBundledRedstoneOutput(ComputerSide side) {
         return computer.isOn() ? computer.getRedstone().getExternalBundledOutput(side) : 0;
     }
 
-    public void setPeripheral(ComputerSide side, @Nullable IPeripheral peripheral) {
+    public final void setPeripheral(ComputerSide side, @Nullable IPeripheral peripheral) {
         computer.getEnvironment().setPeripheral(side, peripheral);
     }
 
     @Nullable
-    public IPeripheral getPeripheral(ComputerSide side) {
+    public final IPeripheral getPeripheral(ComputerSide side) {
         return computer.getEnvironment().getPeripheral(side);
     }
 
-    public void setLabel(@Nullable String label) {
+    public final void setLabel(@Nullable String label) {
         computer.setLabel(label);
     }
 
     @Override
-    public double getTimeOfDay() {
+    public final double getTimeOfDay() {
         return (level.getDayTime() + 6000) % 24000 / 1000.0;
     }
 
     @Override
-    public int getDay() {
+    public final int getDay() {
         return (int) ((level.getDayTime() + 6000) / 24000) + 1;
     }
 
     @Override
-    public MetricsObserver getMetrics() {
+    public final MetricsObserver getMetrics() {
         return metrics;
     }
 
-    public WorkMonitor getMainThreadMonitor() {
+    public final WorkMonitor getMainThreadMonitor() {
         return computer.getMainThreadMonitor();
     }
 
     @Override
-    public @Nullable WritableMount createRootMount() {
+    public final WritableMount createRootMount() {
         return ComputerCraftAPI.createSaveDirMount(level.getServer(), "computer/" + computer.getID(), Config.computerSpaceLimit);
     }
+
+    public static Properties properties(int computerID, ComputerFamily family) {
+        return new Properties(computerID, family);
+    }
+
+    public static final class Properties {
+
+        private final int computerID;
+        private @Nullable String label;
+        private final ComputerFamily family;
+
+        private int terminalWidth = Config.DEFAULT_COMPUTER_TERM_WIDTH;
+        private int terminalHeight = Config.DEFAULT_COMPUTER_TERM_HEIGHT;
+        private final ComponentMap.Builder components = ComponentMap.builder();
+
+        private Properties(int computerID, ComputerFamily family) {
+            this.computerID = computerID;
+            this.family = family;
+        }
+
+        public Properties label(@Nullable String label) {
+            this.label = label;
+            return this;
+        }
+
+        public Properties terminalSize(int width, int height) {
+            if (width <= 0 || height <= 0) throw new IllegalArgumentException("Terminal size must be positive");
+            this.terminalWidth = width;
+            this.terminalHeight = height;
+            return this;
+        }
+
+        public <T> Properties addComponent(ComputerComponent<T> component, T value) {
+            components.add(component, value);
+            return this;
+        }
+
+        private Properties addComponents(ComponentMap components) {
+            this.components.add(components);
+            return this;
+        }
+    }
 }
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/computer/menu/ServerInputState.java b/projects/common/src/main/java/dan200/computercraft/shared/computer/menu/ServerInputState.java
index 21753d2813..7a70e76f9f 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/computer/menu/ServerInputState.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/computer/menu/ServerInputState.java
@@ -7,6 +7,8 @@
 import dan200.computercraft.core.apis.handles.ByteBufferChannel;
 import dan200.computercraft.core.apis.transfer.TransferredFile;
 import dan200.computercraft.core.apis.transfer.TransferredFiles;
+import dan200.computercraft.core.computer.ComputerEvents;
+import dan200.computercraft.core.util.StringUtil;
 import dan200.computercraft.shared.computer.upload.FileSlice;
 import dan200.computercraft.shared.computer.upload.FileUpload;
 import dan200.computercraft.shared.computer.upload.UploadResult;
@@ -21,6 +23,7 @@
 import org.slf4j.LoggerFactory;
 
 import javax.annotation.Nullable;
+import java.nio.ByteBuffer;
 import java.util.List;
 import java.util.UUID;
 
@@ -48,21 +51,33 @@ public ServerInputState(T owner) {
         this.owner = owner;
     }
 
-    @Override
-    public void queueEvent(String event, @Nullable Object[] arguments) {
-        owner.getComputer().queueEvent(event, arguments);
-    }
-
     @Override
     public void keyDown(int key, boolean repeat) {
         keysDown.add(key);
-        owner.getComputer().keyDown(key, repeat);
+        ComputerEvents.keyDown(owner.getComputer(), key, repeat);
     }
 
     @Override
     public void keyUp(int key) {
         keysDown.remove(key);
-        owner.getComputer().keyUp(key);
+        ComputerEvents.keyUp(owner.getComputer(), key);
+    }
+
+    @Override
+    public void charTyped(byte chr) {
+        if (StringUtil.isTypableChar(chr)) ComputerEvents.charTyped(owner.getComputer(), chr);
+    }
+
+    @Override
+    public void paste(ByteBuffer contents) {
+        if (contents.remaining() > 0 && isValidClipboard(contents)) ComputerEvents.paste(owner.getComputer(), contents);
+    }
+
+    private static boolean isValidClipboard(ByteBuffer buffer) {
+        for (int i = buffer.remaining(), max = buffer.limit(); i < max; i++) {
+            if (!StringUtil.isTypableChar(buffer.get(i))) return false;
+        }
+        return true;
     }
 
     @Override
@@ -71,7 +86,7 @@ public void mouseClick(int button, int x, int y) {
         lastMouseY = y;
         lastMouseDown = button;
 
-        owner.getComputer().mouseClick(button, x, y);
+        ComputerEvents.mouseClick(owner.getComputer(), button, x, y);
     }
 
     @Override
@@ -80,7 +95,7 @@ public void mouseUp(int button, int x, int y) {
         lastMouseY = y;
         lastMouseDown = -1;
 
-        owner.getComputer().mouseUp(button, x, y);
+        ComputerEvents.mouseUp(owner.getComputer(), button, x, y);
     }
 
     @Override
@@ -89,7 +104,7 @@ public void mouseDrag(int button, int x, int y) {
         lastMouseY = y;
         lastMouseDown = button;
 
-        owner.getComputer().mouseDrag(button, x, y);
+        ComputerEvents.mouseDrag(owner.getComputer(), button, x, y);
     }
 
     @Override
@@ -97,7 +112,12 @@ public void mouseScroll(int direction, int x, int y) {
         lastMouseX = x;
         lastMouseY = y;
 
-        owner.getComputer().mouseScroll(direction, x, y);
+        ComputerEvents.mouseScroll(owner.getComputer(), direction, x, y);
+    }
+
+    @Override
+    public void terminate() {
+        owner.getComputer().queueEvent("terminate");
     }
 
     @Override
@@ -169,9 +189,9 @@ private UploadResultMessage finishUpload(ServerPlayer player) {
     public void close() {
         var computer = owner.getComputer();
         var keys = keysDown.iterator();
-        while (keys.hasNext()) computer.keyUp(keys.nextInt());
+        while (keys.hasNext()) ComputerEvents.keyUp(computer, keys.nextInt());
 
-        if (lastMouseDown != -1) computer.mouseUp(lastMouseDown, lastMouseX, lastMouseY);
+        if (lastMouseDown != -1) ComputerEvents.mouseUp(computer, lastMouseDown, lastMouseX, lastMouseY);
 
         keysDown.clear();
         lastMouseDown = -1;
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/config/Config.java b/projects/common/src/main/java/dan200/computercraft/shared/config/Config.java
index b18d7cafd7..bb5b1180bd 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/config/Config.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/config/Config.java
@@ -32,14 +32,14 @@ public final class Config {
     public static int advancedTurtleFuelLimit = 100000;
     public static boolean turtlesCanPush = true;
 
-    public static int computerTermWidth = 51;
-    public static int computerTermHeight = 19;
+    public static final int DEFAULT_COMPUTER_TERM_WIDTH = 51;
+    public static final int DEFAULT_COMPUTER_TERM_HEIGHT = 19;
 
-    public static final int turtleTermWidth = 39;
-    public static final int turtleTermHeight = 13;
+    public static final int TURTLE_TERM_WIDTH = 39;
+    public static final int TURTLE_TERM_HEIGHT = 13;
 
-    public static int pocketTermWidth = 26;
-    public static int pocketTermHeight = 20;
+    public static final int DEFAULT_POCKET_TERM_WIDTH = 26;
+    public static final int DEFAULT_POCKET_TERM_HEIGHT = 20;
 
     public static int monitorWidth = 8;
     public static int monitorHeight = 6;
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/config/ConfigSpec.java b/projects/common/src/main/java/dan200/computercraft/shared/config/ConfigSpec.java
index 13ee5e3eb4..77d8f35369 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/config/ConfigSpec.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/config/ConfigSpec.java
@@ -344,13 +344,13 @@ or a single method (computercraft:inventory#pushItems).
                 .push("term_sizes");
 
             builder.comment("Terminal size of computers.").push("computer");
-            computerTermWidth = builder.comment("Width of computer terminal").defineInRange("width", Config.computerTermWidth, 1, 255);
-            computerTermHeight = builder.comment("Height of computer terminal").defineInRange("height", Config.computerTermHeight, 1, 255);
+            computerTermWidth = builder.comment("Width of computer terminal").defineInRange("width", Config.DEFAULT_COMPUTER_TERM_WIDTH, 1, 255);
+            computerTermHeight = builder.comment("Height of computer terminal").defineInRange("height", Config.DEFAULT_COMPUTER_TERM_HEIGHT, 1, 255);
             builder.pop();
 
             builder.comment("Terminal size of pocket computers.").push("pocket_computer");
-            pocketTermWidth = builder.comment("Width of pocket computer terminal").defineInRange("width", Config.pocketTermWidth, 1, 255);
-            pocketTermHeight = builder.comment("Height of pocket computer terminal").defineInRange("height", Config.pocketTermHeight, 1, 255);
+            pocketTermWidth = builder.comment("Width of pocket computer terminal").defineInRange("width", Config.DEFAULT_POCKET_TERM_WIDTH, 1, 255);
+            pocketTermHeight = builder.comment("Height of pocket computer terminal").defineInRange("height", Config.DEFAULT_POCKET_TERM_HEIGHT, 1, 255);
             builder.pop();
 
             builder.comment("Maximum size of monitors (in blocks).").push("monitor");
@@ -437,10 +437,6 @@ public static void syncServer(@Nullable Path path) {
         Config.turtlesCanPush = turtlesCanPush.get();
 
         // Terminal size
-        Config.computerTermWidth = computerTermWidth.get();
-        Config.computerTermHeight = computerTermHeight.get();
-        Config.pocketTermWidth = pocketTermWidth.get();
-        Config.pocketTermHeight = pocketTermHeight.get();
         Config.monitorWidth = monitorWidth.get();
         Config.monitorHeight = monitorHeight.get();
     }
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/network/NetworkMessages.java b/projects/common/src/main/java/dan200/computercraft/shared/network/NetworkMessages.java
index 1abe0498ac..961054cc6f 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/network/NetworkMessages.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/network/NetworkMessages.java
@@ -26,9 +26,9 @@ public final class NetworkMessages {
     private static final List<CustomPacketPayload.TypeAndCodec<RegistryFriendlyByteBuf, ? extends NetworkMessage<ClientNetworkContext>>> clientMessages = new ArrayList<>();
 
     public static final CustomPacketPayload.Type<ComputerActionServerMessage> COMPUTER_ACTION = registerServerbound("computer_action", ComputerActionServerMessage.STREAM_CODEC);
-    public static final CustomPacketPayload.Type<QueueEventServerMessage> QUEUE_EVENT = register(serverMessages, "queue_event", QueueEventServerMessage.STREAM_CODEC);
     public static final CustomPacketPayload.Type<KeyEventServerMessage> KEY_EVENT = registerServerbound("key_event", KeyEventServerMessage.STREAM_CODEC);
     public static final CustomPacketPayload.Type<MouseEventServerMessage> MOUSE_EVENT = registerServerbound("mouse_event", MouseEventServerMessage.STREAM_CODEC);
+    public static final CustomPacketPayload.Type<PasteEventComputerMessage> PASTE_EVENT = registerServerbound("paste_event", PasteEventComputerMessage.STREAM_CODEC);
     public static final CustomPacketPayload.Type<UploadFileMessage> UPLOAD_FILE = register(serverMessages, "upload_file", UploadFileMessage.STREAM_CODEC);
 
     public static final CustomPacketPayload.Type<ChatTableClientMessage> CHAT_TABLE = registerClientbound("chat_table", ChatTableClientMessage.STREAM_CODEC);
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/network/codec/MoreStreamCodecs.java b/projects/common/src/main/java/dan200/computercraft/shared/network/codec/MoreStreamCodecs.java
index 893980b68e..bfca7a1b59 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/network/codec/MoreStreamCodecs.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/network/codec/MoreStreamCodecs.java
@@ -83,25 +83,36 @@ public void encode(ByteBuf buf, OptionalInt optional) {
     };
 
     /**
-     * Equivalent to {@link ByteBufCodecs#BYTE_ARRAY}, but into an immutable {@link ByteBuffer}.
+     * Read a {@link ByteBuffer}, with a limit of the number of bytes to read.
+     *
+     * @param limit The maximum length of the received buffer.
+     * @return A stream codec that reads {@link ByteBuffer}s.
+     * @see #BYTE_BUFFER
      */
-    public static final StreamCodec<ByteBuf, ByteBuffer> BYTE_BUFFER = new StreamCodec<>() {
-        @Override
-        public ByteBuffer decode(ByteBuf buf) {
-            var toRead = VarInt.read(buf);
-            if (toRead > buf.readableBytes()) {
-                throw new DecoderException("ByteArray with size " + toRead + " is bigger than allowed");
+    public static StreamCodec<ByteBuf, ByteBuffer> byteBuffer(int limit) {
+        return new StreamCodec<>() {
+            @Override
+            public ByteBuffer decode(ByteBuf buf) {
+                var toRead = VarInt.read(buf);
+                if (toRead > buf.readableBytes() || toRead >= limit) {
+                    throw new DecoderException("ByteArray with size " + toRead + " is bigger than allowed");
+                }
+
+                var bytes = new byte[toRead];
+                buf.readBytes(bytes);
+                return ByteBuffer.wrap(bytes).asReadOnlyBuffer();
             }
 
-            var bytes = new byte[toRead];
-            buf.readBytes(bytes);
-            return ByteBuffer.wrap(bytes).asReadOnlyBuffer();
-        }
+            @Override
+            public void encode(ByteBuf buf, ByteBuffer buffer) {
+                VarInt.write(buf, buffer.remaining());
+                buf.writeBytes(buffer.duplicate());
+            }
+        };
+    }
 
-        @Override
-        public void encode(ByteBuf buf, ByteBuffer buffer) {
-            VarInt.write(buf, buffer.remaining());
-            buf.writeBytes(buffer.duplicate());
-        }
-    };
+    /**
+     * Equivalent to {@link ByteBufCodecs#BYTE_ARRAY}, but into an immutable {@link ByteBuffer}.
+     */
+    public static final StreamCodec<ByteBuf, ByteBuffer> BYTE_BUFFER = byteBuffer(Integer.MAX_VALUE);
 }
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerActionServerMessage.java b/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerActionServerMessage.java
index bac0756bcc..688b872b6d 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerActionServerMessage.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerActionServerMessage.java
@@ -37,6 +37,7 @@ private ComputerActionServerMessage(int menu, Action action) {
     @Override
     protected void handle(ServerNetworkContext context, ComputerMenu container) {
         switch (action) {
+            case TERMINATE -> container.getInput().terminate();
             case TURN_ON -> container.getInput().turnOn();
             case REBOOT -> container.getInput().reboot();
             case SHUTDOWN -> container.getInput().shutdown();
@@ -49,6 +50,7 @@ public CustomPacketPayload.Type<ComputerActionServerMessage> type() {
     }
 
     public enum Action {
+        TERMINATE,
         TURN_ON,
         SHUTDOWN,
         REBOOT
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerServerMessage.java b/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerServerMessage.java
index 6b8c609b24..6c6aacf456 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerServerMessage.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/network/server/ComputerServerMessage.java
@@ -25,8 +25,8 @@ int containerId() {
     @Override
     public void handle(ServerNetworkContext context) {
         Player player = context.getSender();
-        if (player.containerMenu.containerId == containerId && player.containerMenu instanceof ComputerMenu) {
-            handle(context, (ComputerMenu) player.containerMenu);
+        if (player.containerMenu.containerId == containerId && player.containerMenu instanceof ComputerMenu menu) {
+            handle(context, menu);
         }
     }
 
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/network/server/KeyEventServerMessage.java b/projects/common/src/main/java/dan200/computercraft/shared/network/server/KeyEventServerMessage.java
index 9e51d936af..e526b83231 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/network/server/KeyEventServerMessage.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/network/server/KeyEventServerMessage.java
@@ -44,6 +44,7 @@ protected void handle(ServerNetworkContext context, ComputerMenu container) {
             case UP -> input.keyUp(key);
             case DOWN -> input.keyDown(key, false);
             case REPEAT -> input.keyDown(key, true);
+            case CHAR -> input.charTyped((byte) key);
         }
     }
 
@@ -53,6 +54,6 @@ public CustomPacketPayload.Type<KeyEventServerMessage> type() {
     }
 
     public enum Action {
-        DOWN, REPEAT, UP
+        DOWN, REPEAT, UP, CHAR
     }
 }
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/network/server/PasteEventComputerMessage.java b/projects/common/src/main/java/dan200/computercraft/shared/network/server/PasteEventComputerMessage.java
new file mode 100644
index 0000000000..b33a95df29
--- /dev/null
+++ b/projects/common/src/main/java/dan200/computercraft/shared/network/server/PasteEventComputerMessage.java
@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: 2025 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.shared.network.server;
+
+import dan200.computercraft.core.util.StringUtil;
+import dan200.computercraft.shared.computer.core.ServerComputer;
+import dan200.computercraft.shared.computer.menu.ComputerMenu;
+import dan200.computercraft.shared.computer.menu.ServerInputHandler;
+import dan200.computercraft.shared.network.NetworkMessages;
+import dan200.computercraft.shared.network.codec.MoreStreamCodecs;
+import net.minecraft.network.RegistryFriendlyByteBuf;
+import net.minecraft.network.codec.ByteBufCodecs;
+import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Paste a string on a {@link ServerComputer}.
+ *
+ * @see ServerInputHandler#paste(ByteBuffer)
+ */
+public class PasteEventComputerMessage extends ComputerServerMessage {
+    public static final StreamCodec<RegistryFriendlyByteBuf, PasteEventComputerMessage> STREAM_CODEC = StreamCodec.composite(
+        ByteBufCodecs.VAR_INT, PasteEventComputerMessage::containerId,
+        MoreStreamCodecs.byteBuffer(StringUtil.MAX_PASTE_LENGTH), c -> c.text,
+        PasteEventComputerMessage::new
+    );
+
+    private final ByteBuffer text;
+
+    public PasteEventComputerMessage(AbstractContainerMenu menu, ByteBuffer text) {
+        this(menu.containerId, text);
+    }
+
+    private PasteEventComputerMessage(int id, ByteBuffer text) {
+        super(id);
+        this.text = text;
+    }
+
+    @Override
+    protected void handle(ServerNetworkContext context, ComputerMenu container) {
+        container.getInput().paste(text);
+    }
+
+    @Override
+    public CustomPacketPayload.Type<PasteEventComputerMessage> type() {
+        return NetworkMessages.PASTE_EVENT;
+    }
+}
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/network/server/QueueEventServerMessage.java b/projects/common/src/main/java/dan200/computercraft/shared/network/server/QueueEventServerMessage.java
deleted file mode 100644
index 3c7b20ffb5..0000000000
--- a/projects/common/src/main/java/dan200/computercraft/shared/network/server/QueueEventServerMessage.java
+++ /dev/null
@@ -1,60 +0,0 @@
-// SPDX-FileCopyrightText: 2018 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.shared.network.server;
-
-import dan200.computercraft.shared.computer.core.ServerComputer;
-import dan200.computercraft.shared.computer.menu.ComputerMenu;
-import dan200.computercraft.shared.computer.menu.ServerInputHandler;
-import dan200.computercraft.shared.network.NetworkMessages;
-import dan200.computercraft.shared.util.NBTUtil;
-import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.network.RegistryFriendlyByteBuf;
-import net.minecraft.network.codec.StreamCodec;
-import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
-import net.minecraft.world.inventory.AbstractContainerMenu;
-
-import javax.annotation.Nullable;
-
-/**
- * Queue an event on a {@link ServerComputer}.
- *
- * @see ServerInputHandler#queueEvent(String)
- */
-public final class QueueEventServerMessage extends ComputerServerMessage {
-    public static final StreamCodec<RegistryFriendlyByteBuf, QueueEventServerMessage> STREAM_CODEC = StreamCodec.ofMember(QueueEventServerMessage::write, QueueEventServerMessage::new);
-
-    private final String event;
-    private final @Nullable Object[] args;
-
-    public QueueEventServerMessage(AbstractContainerMenu menu, String event, @Nullable Object[] args) {
-        super(menu.containerId);
-        this.event = event;
-        this.args = args;
-    }
-
-    private QueueEventServerMessage(FriendlyByteBuf buf) {
-        super(buf.readVarInt());
-        event = buf.readUtf(Short.MAX_VALUE);
-
-        var args = buf.readNbt();
-        this.args = args == null ? null : NBTUtil.decodeObjects(args);
-    }
-
-    private void write(RegistryFriendlyByteBuf buf) {
-        buf.writeVarInt(containerId());
-        buf.writeUtf(event);
-        buf.writeNbt(args == null ? null : NBTUtil.encodeObjects(args));
-    }
-
-    @Override
-    protected void handle(ServerNetworkContext context, ComputerMenu container) {
-        container.getInput().queueEvent(event, args);
-    }
-
-    @Override
-    public CustomPacketPayload.Type<QueueEventServerMessage> type() {
-        return NetworkMessages.QUEUE_EVENT;
-    }
-}
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketBrain.java b/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketBrain.java
index 5b6fcbf8d2..8ce2a36b0b 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketBrain.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketBrain.java
@@ -8,7 +8,7 @@
 import dan200.computercraft.api.pocket.IPocketUpgrade;
 import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.core.computer.ComputerSide;
-import dan200.computercraft.shared.computer.core.ComputerFamily;
+import dan200.computercraft.shared.computer.core.ServerComputer;
 import dan200.computercraft.shared.network.client.PocketComputerDataMessage;
 import dan200.computercraft.shared.network.server.ServerNetworking;
 import dan200.computercraft.shared.pocket.items.PocketComputerItem;
@@ -41,8 +41,8 @@ public final class PocketBrain implements IPocketAccess {
     private int colour = -1;
     private int lightColour = -1;
 
-    public PocketBrain(PocketHolder holder, int computerID, @Nullable String label, ComputerFamily family, @Nullable UpgradeData<IPocketUpgrade> upgrade) {
-        this.computer = new PocketServerComputer(this, holder, computerID, label, family);
+    public PocketBrain(PocketHolder holder, @Nullable UpgradeData<IPocketUpgrade> upgrade, ServerComputer.Properties properties) {
+        this.computer = new PocketServerComputer(this, holder, properties);
         this.holder = holder;
         this.position = holder.pos();
         this.upgrade = upgrade;
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java b/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java
index eabe10323a..bad6885596 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java
@@ -5,15 +5,13 @@
 package dan200.computercraft.shared.pocket.core;
 
 import dan200.computercraft.api.component.ComputerComponents;
-import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.computer.core.ComputerState;
 import dan200.computercraft.shared.computer.core.ServerComputer;
-import dan200.computercraft.shared.config.Config;
+import dan200.computercraft.shared.config.ConfigSpec;
 import dan200.computercraft.shared.network.client.PocketComputerDataMessage;
 import dan200.computercraft.shared.network.client.PocketComputerDeletedClientMessage;
 import dan200.computercraft.shared.network.server.ServerNetworking;
 import dan200.computercraft.shared.pocket.items.PocketComputerItem;
-import dan200.computercraft.shared.util.ComponentMap;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.ChunkPos;
 
@@ -41,10 +39,10 @@ public final class PocketServerComputer extends ServerComputer {
 
     private Set<ServerPlayer> tracking = Set.of();
 
-    PocketServerComputer(PocketBrain brain, PocketHolder holder, int computerID, @Nullable String label, ComputerFamily family) {
-        super(
-            holder.level(), holder.blockPos(), computerID, label, family, Config.pocketTermWidth, Config.pocketTermHeight,
-            ComponentMap.builder().add(ComputerComponents.POCKET, brain).build()
+    PocketServerComputer(PocketBrain brain, PocketHolder holder, ServerComputer.Properties properties) {
+        super(holder.level(), holder.blockPos(), properties
+            .terminalSize(ConfigSpec.pocketTermWidth.get(), ConfigSpec.pocketTermHeight.get())
+            .addComponent(ComputerComponents.POCKET, brain)
         );
         this.brain = brain;
     }
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/pocket/items/PocketComputerItem.java b/projects/common/src/main/java/dan200/computercraft/shared/pocket/items/PocketComputerItem.java
index 46abd4f8cd..7516531db2 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/pocket/items/PocketComputerItem.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/pocket/items/PocketComputerItem.java
@@ -196,7 +196,10 @@ private PocketBrain getOrCreateBrain(ServerLevel level, PocketHolder holder, Ite
         }
 
         var computerID = NonNegativeId.getOrCreate(level.getServer(), stack, ModRegistry.DataComponents.COMPUTER_ID.get(), IDAssigner.COMPUTER);
-        var brain = new PocketBrain(holder, computerID, getLabel(stack), getFamily(), getUpgradeWithData(stack));
+        var brain = new PocketBrain(
+            holder, getUpgradeWithData(stack),
+            ServerComputer.properties(computerID, getFamily()).label(getLabel(stack))
+        );
         var computer = brain.computer();
 
         stack.set(ModRegistry.DataComponents.COMPUTER.get(), new ServerComputerReference(registry.getSessionID(), computer.register()));
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/turtle/blocks/TurtleBlockEntity.java b/projects/common/src/main/java/dan200/computercraft/shared/turtle/blocks/TurtleBlockEntity.java
index 542f6ab617..8a5ccfe329 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/turtle/blocks/TurtleBlockEntity.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/turtle/blocks/TurtleBlockEntity.java
@@ -24,7 +24,6 @@
 import dan200.computercraft.shared.turtle.TurtleOverlay;
 import dan200.computercraft.shared.turtle.core.TurtleBrain;
 import dan200.computercraft.shared.turtle.inventory.TurtleMenu;
-import dan200.computercraft.shared.util.ComponentMap;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.core.HolderLookup;
@@ -80,10 +79,10 @@ boolean hasMoved() {
 
     @Override
     protected ServerComputer createComputer(int id) {
-        var computer = new ServerComputer(
-            (ServerLevel) getLevel(), getBlockPos(), id, label,
-            getFamily(), Config.turtleTermWidth, Config.turtleTermHeight,
-            ComponentMap.builder().add(ComputerComponents.TURTLE, brain).build()
+        var computer = new ServerComputer((ServerLevel) getLevel(), getBlockPos(), ServerComputer.properties(id, getFamily())
+            .label(getLabel())
+            .terminalSize(Config.TURTLE_TERM_WIDTH, Config.TURTLE_TERM_HEIGHT)
+            .addComponent(ComputerComponents.TURTLE, brain)
         );
         brain.setupComputer(computer);
         return computer;
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/util/NBTUtil.java b/projects/common/src/main/java/dan200/computercraft/shared/util/NBTUtil.java
index 90c25157eb..e27dfd2a23 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/util/NBTUtil.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/util/NBTUtil.java
@@ -44,125 +44,33 @@ public static <T> void encodeTo(Codec<T> codec, HolderLookup.Provider registries
             .ifPresent(x -> destination.put(key, x));
     }
 
-    private static @Nullable Tag toNBTTag(@Nullable Object object) {
-        if (object == null) return null;
-        if (object instanceof Boolean) return ByteTag.valueOf((byte) ((boolean) (Boolean) object ? 1 : 0));
-        if (object instanceof Number) return DoubleTag.valueOf(((Number) object).doubleValue());
-        if (object instanceof String) return StringTag.valueOf(object.toString());
-        if (object instanceof Map<?, ?> m) {
-            var nbt = new CompoundTag();
-            var i = 0;
-            for (Map.Entry<?, ?> entry : m.entrySet()) {
-                var key = toNBTTag(entry.getKey());
-                var value = toNBTTag(entry.getKey());
-                if (key != null && value != null) {
-                    nbt.put("k" + i, key);
-                    nbt.put("v" + i, value);
-                    i++;
-                }
-            }
-            nbt.putInt("len", m.size());
-            return nbt;
-        }
-
-        return null;
-    }
-
-    public static @Nullable CompoundTag encodeObjects(@Nullable Object[] objects) {
-        if (objects == null || objects.length == 0) return null;
-
-        var nbt = new CompoundTag();
-        nbt.putInt("len", objects.length);
-        for (var i = 0; i < objects.length; i++) {
-            var child = toNBTTag(objects[i]);
-            if (child != null) nbt.put(Integer.toString(i), child);
-        }
-        return nbt;
-    }
-
-    private static @Nullable Object fromNBTTag(@Nullable Tag tag) {
-        if (tag == null) return null;
-        switch (tag.getId()) {
-            case Tag.TAG_BYTE:
-                return ((ByteTag) tag).getAsByte() > 0;
-            case Tag.TAG_DOUBLE:
-                return ((DoubleTag) tag).getAsDouble();
-            default:
-            case Tag.TAG_STRING:
-                return tag.getAsString();
-            case Tag.TAG_COMPOUND: {
-                var c = (CompoundTag) tag;
-                var len = c.getInt("len");
-                Map<Object, Object> map = new HashMap<>(len);
-                for (var i = 0; i < len; i++) {
-                    var key = fromNBTTag(c.get("k" + i));
-                    var value = fromNBTTag(c.get("v" + i));
-                    if (key != null && value != null) map.put(key, value);
-                }
-                return map;
-            }
-        }
-    }
-
     public static @Nullable Object toLua(@Nullable Tag tag) {
         if (tag == null) return null;
 
-        switch (tag.getId()) {
-            case Tag.TAG_BYTE:
-            case Tag.TAG_SHORT:
-            case Tag.TAG_INT:
-            case Tag.TAG_LONG:
-                return ((NumericTag) tag).getAsLong();
-            case Tag.TAG_FLOAT:
-            case Tag.TAG_DOUBLE:
-                return ((NumericTag) tag).getAsDouble();
-            case Tag.TAG_STRING: // String
-                return tag.getAsString();
-            case Tag.TAG_COMPOUND: { // Compound
+        return switch (tag.getId()) {
+            case Tag.TAG_BYTE, Tag.TAG_SHORT, Tag.TAG_INT, Tag.TAG_LONG -> ((NumericTag) tag).getAsLong();
+            case Tag.TAG_FLOAT, Tag.TAG_DOUBLE -> ((NumericTag) tag).getAsDouble();
+            case Tag.TAG_STRING -> tag.getAsString();
+            case Tag.TAG_COMPOUND -> {
                 var compound = (CompoundTag) tag;
                 Map<String, Object> map = new HashMap<>(compound.size());
                 for (var key : compound.getAllKeys()) {
                     var value = toLua(compound.get(key));
                     if (value != null) map.put(key, value);
                 }
-                return map;
+                yield map;
             }
-            case Tag.TAG_LIST: {
-                var list = (ListTag) tag;
-                List<Object> map = new ArrayList<>(list.size());
-                for (var value : list) map.add(toLua(value));
-                return map;
-            }
-            case Tag.TAG_BYTE_ARRAY: {
+            case Tag.TAG_LIST -> ((ListTag) tag).stream().map(NBTUtil::toLua).toList();
+            case Tag.TAG_BYTE_ARRAY -> {
                 var array = ((ByteArrayTag) tag).getAsByteArray();
                 List<Byte> map = new ArrayList<>(array.length);
                 for (var b : array) map.add(b);
-                return map;
-            }
-            case Tag.TAG_INT_ARRAY: {
-                var array = ((IntArrayTag) tag).getAsIntArray();
-                List<Integer> map = new ArrayList<>(array.length);
-                for (var j : array) map.add(j);
-                return map;
-            }
-
-            default:
-                return null;
-        }
-    }
-
-    public static @Nullable Object[] decodeObjects(CompoundTag tag) {
-        var len = tag.getInt("len");
-        if (len <= 0) return null;
-
-        var objects = new Object[len];
-        for (var i = 0; i < len; i++) {
-            var key = Integer.toString(i);
-            if (tag.contains(key)) {
-                objects[i] = fromNBTTag(tag.get(key));
+                yield map;
             }
-        }
-        return objects;
+            case Tag.TAG_INT_ARRAY -> Arrays.stream(((IntArrayTag) tag).getAsIntArray()).boxed().toList();
+            case Tag.TAG_LONG_ARRAY -> Arrays.stream(((LongArrayTag) tag).getAsLongArray()).boxed().toList();
+            default -> null;
+        };
     }
 
     @Nullable
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/terminate.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/terminate.png
similarity index 100%
rename from projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/terminate.png
rename to projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/terminate.png
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/terminate_hover.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/terminate_hover.png
similarity index 100%
rename from projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/terminate_hover.png
rename to projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/terminate_hover.png
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_off.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_off.png
similarity index 100%
rename from projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_off.png
rename to projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_off.png
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_off_hover.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_off_hover.png
similarity index 100%
rename from projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_off_hover.png
rename to projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_off_hover.png
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_on.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_on.png
similarity index 100%
rename from projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_on.png
rename to projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_on.png
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_on_hover.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_on_hover.png
similarity index 100%
rename from projects/common/src/main/resources/assets/computercraft/textures/gui/buttons/turned_on_hover.png
rename to projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/buttons/turned_on_hover.png
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/turtle_advanced_selected_slot.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/turtle_advanced_selected_slot.png
new file mode 100644
index 0000000000..1550ea4c6e
Binary files /dev/null and b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/turtle_advanced_selected_slot.png differ
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/turtle_normal_selected_slot.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/turtle_normal_selected_slot.png
new file mode 100644
index 0000000000..bdf51ef112
Binary files /dev/null and b/projects/common/src/main/resources/assets/computercraft/textures/gui/sprites/turtle_normal_selected_slot.png differ
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_advanced.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_advanced.png
index 8f7d66500b..eaaeea36a0 100644
Binary files a/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_advanced.png and b/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_advanced.png differ
diff --git a/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_normal.png b/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_normal.png
index f676c56b20..06cf906447 100644
Binary files a/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_normal.png and b/projects/common/src/main/resources/assets/computercraft/textures/gui/turtle_normal.png differ
diff --git a/projects/common/src/testMod/java/dan200/computercraft/mixin/gametest/GameTestServerMixin.java b/projects/common/src/testMod/java/dan200/computercraft/mixin/gametest/GameTestServerMixin.java
new file mode 100644
index 0000000000..20fd50302d
--- /dev/null
+++ b/projects/common/src/testMod/java/dan200/computercraft/mixin/gametest/GameTestServerMixin.java
@@ -0,0 +1,51 @@
+// SPDX-FileCopyrightText: 2025 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.mixin.gametest;
+
+import com.mojang.datafixers.DataFixer;
+import dan200.computercraft.gametest.core.TestHooks;
+import net.minecraft.gametest.framework.GameTestServer;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.Services;
+import net.minecraft.server.WorldStem;
+import net.minecraft.server.level.progress.ChunkProgressListenerFactory;
+import net.minecraft.server.packs.repository.PackRepository;
+import net.minecraft.world.level.storage.LevelStorageSource;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Overwrite;
+import org.spongepowered.asm.mixin.Shadow;
+
+import java.net.Proxy;
+import java.util.concurrent.locks.LockSupport;
+
+@Mixin(GameTestServer.class)
+abstract class GameTestServerMixin extends MinecraftServer {
+    GameTestServerMixin(Thread serverThread, LevelStorageSource.LevelStorageAccess storageSource, PackRepository packRepository, WorldStem worldStem, Proxy proxy, DataFixer fixerUpper, Services services, ChunkProgressListenerFactory progressListenerFactory) {
+        super(serverThread, storageSource, packRepository, worldStem, proxy, fixerUpper, services, progressListenerFactory);
+    }
+
+    /**
+     * Overwrite {@link GameTestServer#waitUntilNextTick()} to wait for all computers to finish executing.
+     * <p>
+     * This is a little dangerous (breaks async behaviour of computers), but it forces tests to be deterministic.
+     *
+     * @reason See above. This is only in the test mod, so no risk of collision.
+     * @author SquidDev.
+     */
+    @Overwrite
+    @Override
+    public void waitUntilNextTick() {
+        while (true) {
+            runAllTasks();
+            if (!haveTestsStarted() || TestHooks.areComputersIdle(this)) break;
+            LockSupport.parkNanos(100_000);
+        }
+    }
+
+    @Shadow
+    private boolean haveTestsStarted() {
+        throw new AssertionError("Stub.");
+    }
+}
diff --git a/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestHooks.kt b/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestHooks.kt
index 0517274b61..4ce83c7ab6 100644
--- a/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestHooks.kt
+++ b/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestHooks.kt
@@ -5,6 +5,8 @@
 package dan200.computercraft.gametest.core
 
 import dan200.computercraft.api.ComputerCraftAPI
+import dan200.computercraft.core.ComputerContext
+import dan200.computercraft.core.computer.computerthread.ComputerThread
 import dan200.computercraft.gametest.*
 import dan200.computercraft.gametest.api.ClientGameTest
 import dan200.computercraft.gametest.api.TestTags
@@ -24,6 +26,8 @@ import net.minecraft.world.phys.Vec3
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 import java.io.File
+import java.lang.invoke.MethodHandle
+import java.lang.invoke.MethodHandles
 import java.lang.reflect.InvocationTargetException
 import java.lang.reflect.Method
 import java.lang.reflect.Modifier
@@ -91,6 +95,9 @@ object TestHooks {
         CCTestCommand.importFiles(server)
     }
 
+    @JvmStatic
+    fun areComputersIdle(server: MinecraftServer) = ComputerThreadReflection.isFullyIdle(ServerContext.get(server))
+
     private val testClasses = listOf(
         Computer_Test::class.java,
         CraftOs_Test::class.java,
@@ -128,14 +135,6 @@ object TestHooks {
         }
     }
 
-    private val isCi = System.getenv("CI") != null
-
-    /**
-     * Adjust the timeout of a test. This makes it 1.5 times longer when run under CI, as CI servers are less powerful
-     * than our own.
-     */
-    private fun adjustTimeout(timeout: Int): Int = if (isCi) timeout + (timeout / 2) else timeout
-
     private fun registerTest(testClass: Class<*>, method: Method, fallbackRegister: Consumer<Method>) {
         val className = testClass.simpleName.lowercase()
         val testName = className + "." + method.name.lowercase()
@@ -147,7 +146,7 @@ object TestHooks {
                 TestFunction(
                     testInfo.batch, testName, testInfo.template.ifEmpty { testName },
                     StructureUtils.getRotationForRotationSteps(testInfo.rotationSteps),
-                    adjustTimeout(testInfo.timeoutTicks),
+                    testInfo.timeoutTicks,
                     testInfo.setupTicks,
                     testInfo.required, testInfo.manualOnly,
                     testInfo.attempts,
@@ -167,7 +166,7 @@ object TestHooks {
                     testName,
                     testName,
                     testInfo.template.ifEmpty { testName },
-                    adjustTimeout(testInfo.timeoutTicks),
+                    testInfo.timeoutTicks,
                     0,
                     true,
                 ) { value -> safeInvoke(method, value) },
@@ -215,3 +214,31 @@ object TestHooks {
         return false
     }
 }
+
+/**
+ * Nasty reflection to determine if computers are fully idle.
+ *
+ * This is horribly nasty, and should not be used as a model for any production code!
+ *
+ * @see [ComputerThread.isFullyIdle]
+ * @see [dan200.computercraft.mixin.gametest.GameTestServerMixin]
+ */
+private object ComputerThreadReflection {
+    private val lookup = MethodHandles.lookup()
+
+    @JvmField
+    val computerContext: MethodHandle = lookup.unreflectGetter(
+        ServerContext::class.java.getDeclaredField("context").also { it.isAccessible = true },
+    )
+
+    @JvmField
+    val isFullyIdle: MethodHandle = lookup.unreflect(
+        ComputerThread::class.java.getDeclaredMethod("isFullyIdle").also { it.isAccessible = true },
+    )
+
+    fun isFullyIdle(context: ServerContext): Boolean {
+        val computerContext = computerContext.invokeExact(context) as ComputerContext
+        val computerThread = computerContext.computerScheduler() as ComputerThread
+        return isFullyIdle.invokeExact(computerThread) as Boolean
+    }
+}
diff --git a/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestReporters.kt b/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestReporters.kt
index f6a6e8b68c..483dbb0f0a 100644
--- a/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestReporters.kt
+++ b/projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestReporters.kt
@@ -35,7 +35,7 @@ class MultiTestReporter(private val reporters: List<TestReporter>) : TestReporte
  * Reports tests to a JUnit XML file. This is equivalent to [JUnitLikeTestReporter], except it ensures the destination
  * directory exists.
  */
-class JunitTestReporter constructor(destination: File) : JUnitLikeTestReporter(destination) {
+class JunitTestReporter(destination: File) : JUnitLikeTestReporter(destination) {
     override fun save(file: File) {
         try {
             Files.createDirectories(file.toPath().parent)
diff --git a/projects/common/src/testMod/resources/computercraft-gametest.mixins.json b/projects/common/src/testMod/resources/computercraft-gametest.mixins.json
index 803991da5c..afa604db4c 100644
--- a/projects/common/src/testMod/resources/computercraft-gametest.mixins.json
+++ b/projects/common/src/testMod/resources/computercraft-gametest.mixins.json
@@ -11,6 +11,7 @@
         "GameTestInfoAccessor",
         "GameTestSequenceAccessor",
         "GameTestSequenceMixin",
+        "GameTestServerMixin",
         "StructureTemplateManagerMixin",
         "TestCommandAccessor"
     ],
diff --git a/projects/core/build.gradle.kts b/projects/core/build.gradle.kts
index 4655b9e50b..5ae2dbe4d5 100644
--- a/projects/core/build.gradle.kts
+++ b/projects/core/build.gradle.kts
@@ -40,6 +40,8 @@ dependencies {
 }
 
 tasks.processResources {
+    inputs.property("gitHash", cct.gitHash)
+
     var props = mapOf("gitContributors" to cct.gitContributors.get().joinToString("\n"))
     filesMatching("data/computercraft/lua/rom/help/credits.md") { expand(props) }
 }
diff --git a/projects/core/src/main/java/dan200/computercraft/core/computer/Computer.java b/projects/core/src/main/java/dan200/computercraft/core/computer/Computer.java
index e3cb9f2e73..bab2085064 100644
--- a/projects/core/src/main/java/dan200/computercraft/core/computer/Computer.java
+++ b/projects/core/src/main/java/dan200/computercraft/core/computer/Computer.java
@@ -31,7 +31,7 @@
  * <li>Passes main thread tasks to the {@link MainThreadScheduler.Executor}.</li>
  * </ul>
  */
-public class Computer {
+public class Computer implements ComputerEvents.Receiver {
     private static final int START_DELAY = 50;
 
     // Various properties of the computer
@@ -114,6 +114,7 @@ public void unload() {
         executor.queueStop(false, true);
     }
 
+    @Override
     public void queueEvent(String event, @Nullable Object[] args) {
         executor.queueEvent(event, args);
     }
diff --git a/projects/core/src/main/java/dan200/computercraft/core/computer/ComputerEvents.java b/projects/core/src/main/java/dan200/computercraft/core/computer/ComputerEvents.java
new file mode 100644
index 0000000000..f3ed14372d
--- /dev/null
+++ b/projects/core/src/main/java/dan200/computercraft/core/computer/ComputerEvents.java
@@ -0,0 +1,72 @@
+// SPDX-FileCopyrightText: 2025 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.core.computer;
+
+import dan200.computercraft.core.util.StringUtil;
+
+import javax.annotation.Nullable;
+import java.nio.ByteBuffer;
+
+/**
+ * Built-in events that can be queued on a computer.
+ */
+public final class ComputerEvents {
+    private ComputerEvents() {
+    }
+
+    public static void keyDown(Receiver receiver, int key, boolean repeat) {
+        receiver.queueEvent("key", new Object[]{ key, repeat });
+    }
+
+    public static void keyUp(Receiver receiver, int key) {
+        receiver.queueEvent("key_up", new Object[]{ key });
+    }
+
+    /**
+     * Type a character on the computer.
+     *
+     * @param receiver The computer to queue the event on.
+     * @param chr      The character to type.
+     * @see StringUtil#isTypableChar(byte)
+     */
+    public static void charTyped(Receiver receiver, byte chr) {
+        receiver.queueEvent("char", new Object[]{ new byte[]{ chr } });
+    }
+
+    /**
+     * Paste a string.
+     *
+     * @param receiver The computer to queue the event on.
+     * @param contents The string to paste.
+     * @see StringUtil#getClipboardString(String)
+     */
+    public static void paste(Receiver receiver, ByteBuffer contents) {
+        receiver.queueEvent("paste", new Object[]{ contents });
+    }
+
+    public static void mouseClick(Receiver receiver, int button, int x, int y) {
+        receiver.queueEvent("mouse_click", new Object[]{ button, x, y });
+    }
+
+    public static void mouseUp(Receiver receiver, int button, int x, int y) {
+        receiver.queueEvent("mouse_up", new Object[]{ button, x, y });
+    }
+
+    public static void mouseDrag(Receiver receiver, int button, int x, int y) {
+        receiver.queueEvent("mouse_drag", new Object[]{ button, x, y });
+    }
+
+    public static void mouseScroll(Receiver receiver, int direction, int x, int y) {
+        receiver.queueEvent("mouse_scroll", new Object[]{ direction, x, y });
+    }
+
+    /**
+     * An object that can receive computer events.
+     */
+    @FunctionalInterface
+    public interface Receiver {
+        void queueEvent(String event, @Nullable Object[] arguments);
+    }
+}
diff --git a/projects/core/src/main/java/dan200/computercraft/core/computer/computerthread/ComputerThread.java b/projects/core/src/main/java/dan200/computercraft/core/computer/computerthread/ComputerThread.java
index 221379edd1..b38379a47f 100644
--- a/projects/core/src/main/java/dan200/computercraft/core/computer/computerthread/ComputerThread.java
+++ b/projects/core/src/main/java/dan200/computercraft/core/computer/computerthread/ComputerThread.java
@@ -433,6 +433,16 @@ private boolean isBusy() {
         return computerQueueSize() > idleWorkers.get();
     }
 
+    /**
+     * Determine if no work is queued, and all workers are idle.
+     *
+     * @return If the threads are fully idle.
+     */
+    @VisibleForTesting
+    boolean isFullyIdle() {
+        return computerQueueSize() == 0 && idleWorkers.get() >= workerCount();
+    }
+
     private void workerFinished(WorkerThread worker) {
         // We should only shut down a worker once! This should only happen if we fail to abort a worker and then the
         // worker finishes normally.
diff --git a/projects/core/src/main/java/dan200/computercraft/core/util/StringUtil.java b/projects/core/src/main/java/dan200/computercraft/core/util/StringUtil.java
index 689775a6f6..27e443bc61 100644
--- a/projects/core/src/main/java/dan200/computercraft/core/util/StringUtil.java
+++ b/projects/core/src/main/java/dan200/computercraft/core/util/StringUtil.java
@@ -4,52 +4,116 @@
 
 package dan200.computercraft.core.util;
 
+import dan200.computercraft.core.computer.ComputerEvents;
+
+import java.nio.ByteBuffer;
+
 public final class StringUtil {
+    public static final int MAX_PASTE_LENGTH = 512;
+
     private StringUtil() {
     }
 
-    private static boolean isAllowed(char c) {
-        return (c >= ' ' && c <= '~') || (c >= 161 && c <= 172) || (c >= 174 && c <= 255);
+    /**
+     * Convert a Unicode character to a terminal one.
+     *
+     * @param chr The Unicode character.
+     * @return The terminal character.
+     */
+    public static byte unicodeToTerminal(int chr) {
+        // ASCII and latin1 map to themselves
+        if (chr == 0 || chr == '\t' || chr == '\n' || chr == '\r' || (chr >= ' ' && chr <= '~') || (chr >= 160 && chr <= 255)) {
+            return (byte) chr;
+        }
+
+        // Teletext block mosaics are *fairly* contiguous.
+        if (chr >= 0x1FB00 && chr <= 0x1FB13) return (byte) (chr + (129 - 0x1fb00));
+        if (chr >= 0x1FB14 && chr <= 0x1FB1D) return (byte) (chr + (150 - 0x1fb14));
+
+        // Everything else is just a manual lookup. For now, we just use a big switch statement, which we spin into a
+        // separate function to hopefully avoid inlining it here.
+        return unicodeToCraftOsFallback(chr);
+    }
+
+    private static byte unicodeToCraftOsFallback(int c) {
+        return switch (c) {
+            case 0x263A -> 1;
+            case 0x263B -> 2;
+            case 0x2665 -> 3;
+            case 0x2666 -> 4;
+            case 0x2663 -> 5;
+            case 0x2660 -> 6;
+            case 0x2022 -> 7;
+            case 0x25D8 -> 8;
+            case 0x2642 -> 11;
+            case 0x2640 -> 12;
+            case 0x266A -> 14;
+            case 0x266B -> 15;
+            case 0x25BA -> 16;
+            case 0x25C4 -> 17;
+            case 0x2195 -> 18;
+            case 0x203C -> 19;
+            case 0x25AC -> 22;
+            case 0x21A8 -> 23;
+            case 0x2191 -> 24;
+            case 0x2193 -> 25;
+            case 0x2192 -> 26;
+            case 0x2190 -> 27;
+            case 0x221F -> 28;
+            case 0x2194 -> 29;
+            case 0x25B2 -> 30;
+            case 0x25BC -> 31;
+            case 0x1FB99 -> 127;
+            case 0x258C -> (byte) 149;
+            default -> '?';
+        };
+    }
+
+    /**
+     * Check if a character is capable of being input and passed to a {@linkplain ComputerEvents#charTyped(ComputerEvents.Receiver, byte)
+     * "char" event}.
+     *
+     * @param chr The character to check.
+     * @return Whether this character can be typed.
+     */
+    public static boolean isTypableChar(byte chr) {
+        return chr != 0 && chr != '\r' && chr != '\n';
+    }
+
+    private static boolean isAllowedInLabel(char c) {
+        // Limit to ASCII and latin1, excluding '§' (Minecraft's formatting character).
+        return (c >= ' ' && c <= '~') || (c >= 161 && c <= 255 && c != 167);
     }
 
-    private static String removeSpecialCharacters(String text, int length) {
+    public static String normaliseLabel(String text) {
+        var length = Math.min(32, text.length());
         var builder = new StringBuilder(length);
         for (var i = 0; i < length; i++) {
             var c = text.charAt(i);
-            builder.append(isAllowed(c) ? c : '?');
+            builder.append(isAllowedInLabel(c) ? c : '?');
         }
-
         return builder.toString();
     }
 
-    public static String normaliseLabel(String text) {
-        return removeSpecialCharacters(text, Math.min(32, text.length()));
-    }
-
     /**
-     * Normalise a string from the clipboard, suitable for pasting into a computer.
+     * Convert a Java string to a Lua one (using the terminal charset), suitable for pasting into a computer.
      * <p>
      * This removes special characters and strips to the first line of text.
      *
      * @param clipboard The text from the clipboard.
-     * @return The normalised clipboard text.
+     * @return The encoded clipboard text.
      */
-    public static String normaliseClipboardString(String clipboard) {
-        // Clip to the first occurrence of \r or \n
-        var newLineIndex1 = clipboard.indexOf('\r');
-        var newLineIndex2 = clipboard.indexOf('\n');
-
-        int length;
-        if (newLineIndex1 >= 0 && newLineIndex2 >= 0) {
-            length = Math.min(newLineIndex1, newLineIndex2);
-        } else if (newLineIndex1 >= 0) {
-            length = newLineIndex1;
-        } else if (newLineIndex2 >= 0) {
-            length = newLineIndex2;
-        } else {
-            length = clipboard.length();
+    public static ByteBuffer getClipboardString(String clipboard) {
+        var output = new byte[Math.min(MAX_PASTE_LENGTH, clipboard.length())];
+        var idx = 0;
+
+        var iterator = clipboard.codePoints().iterator();
+        while (iterator.hasNext() && idx <= output.length) {
+            var chr = unicodeToTerminal(iterator.next());
+            if (!isTypableChar(chr)) break;
+            output[idx++] = chr;
         }
 
-        return removeSpecialCharacters(clipboard, Math.min(length, 512));
+        return ByteBuffer.wrap(output, 0, idx).asReadOnlyBuffer();
     }
 }
diff --git a/projects/fabric/build.gradle.kts b/projects/fabric/build.gradle.kts
index 9879263489..63da5ea620 100644
--- a/projects/fabric/build.gradle.kts
+++ b/projects/fabric/build.gradle.kts
@@ -221,6 +221,8 @@ loom {
 }
 
 tasks.processResources {
+    inputs.property("modVersion", modVersion)
+
     var props = mapOf("version" to modVersion)
 
     filesMatching("fabric.mod.json") { expand(props) }
diff --git a/projects/forge/build.gradle.kts b/projects/forge/build.gradle.kts
index ce6bdd2b6e..52ebc776e0 100644
--- a/projects/forge/build.gradle.kts
+++ b/projects/forge/build.gradle.kts
@@ -198,6 +198,9 @@ dependencies {
 // Compile tasks
 
 tasks.processResources {
+    inputs.property("modVersion", modVersion)
+    inputs.property("neoVersion", libs.versions.neoForge)
+
     var props = mapOf(
         "neoVersion" to libs.versions.neoForge.get(),
         "file" to mapOf("jarVersion" to modVersion),
diff --git a/projects/standalone/src/main/java/cc/tweaked/standalone/InputState.java b/projects/standalone/src/main/java/cc/tweaked/standalone/InputState.java
index 70a0ea6c11..2013a1fb33 100644
--- a/projects/standalone/src/main/java/cc/tweaked/standalone/InputState.java
+++ b/projects/standalone/src/main/java/cc/tweaked/standalone/InputState.java
@@ -8,6 +8,7 @@
 import dan200.computercraft.core.apis.transfer.TransferredFile;
 import dan200.computercraft.core.apis.transfer.TransferredFiles;
 import dan200.computercraft.core.computer.Computer;
+import dan200.computercraft.core.computer.ComputerEvents;
 import dan200.computercraft.core.util.StringUtil;
 import org.lwjgl.glfw.GLFW;
 import org.lwjgl.glfw.GLFWDropCallback;
@@ -49,10 +50,8 @@ public InputState(Computer computer) {
     }
 
     public void onCharEvent(int codepoint) {
-        if (codepoint >= 32 && codepoint <= 126 || codepoint >= 160 && codepoint <= 255) {
-            // Queue the char event for any printable chars in byte range
-            computer.queueEvent("char", new Object[]{ Character.toString(codepoint) });
-        }
+        var terminalChar = StringUtil.unicodeToTerminal(codepoint);
+        if (StringUtil.isTypableChar(terminalChar)) ComputerEvents.charTyped(computer, terminalChar);
     }
 
     public void onKeyEvent(long window, int key, int action, int modifiers) {
@@ -68,8 +67,8 @@ private void keyPressed(long window, int key, int modifiers) {
         if (key == GLFW.GLFW_KEY_V && modifiers == GLFW.GLFW_MOD_CONTROL) {
             var string = GLFW.glfwGetClipboardString(window);
             if (string != null) {
-                var clipboard = StringUtil.normaliseClipboardString(string);
-                if (!clipboard.isEmpty()) computer.queueEvent("paste", new Object[]{ clipboard });
+                var clipboard = StringUtil.getClipboardString(string);
+                if (clipboard.remaining() > 0) ComputerEvents.paste(computer, clipboard);
             }
             return;
         }
@@ -92,7 +91,7 @@ private void keyPressed(long window, int key, int modifiers) {
             // Queue the "key" event and add to the down set
             var repeat = keysDown.get(key);
             keysDown.set(key);
-            computer.queueEvent("key", new Object[]{ key, repeat });
+            ComputerEvents.keyDown(computer, key, repeat);
         }
     }
 
@@ -100,7 +99,7 @@ private void keyReleased(int key) {
         // Queue the "key_up" event and remove from the down set
         if (key >= 0 && keysDown.get(key)) {
             keysDown.set(key, false);
-            computer.queueEvent("key_up", new Object[]{ key });
+            ComputerEvents.keyUp(computer, key);
         }
 
         switch (key) {
@@ -115,12 +114,12 @@ private void keyReleased(int key) {
     public void onMouseClick(int button, int action) {
         switch (action) {
             case GLFW.GLFW_PRESS -> {
-                computer.queueEvent("mouse_click", new Object[]{ button + 1, lastMouseX + 1, lastMouseY + 1 });
+                ComputerEvents.mouseClick(computer, button + 1, lastMouseX + 1, lastMouseY + 1);
                 lastMouseButton = button;
             }
             case GLFW.GLFW_RELEASE -> {
                 if (button == lastMouseButton) {
-                    computer.queueEvent("mouse_click", new Object[]{ button + 1, lastMouseX + 1, lastMouseY + 1 });
+                    ComputerEvents.mouseUp(computer, button + 1, lastMouseX + 1, lastMouseY + 1);
                     lastMouseButton = -1;
                 }
             }
@@ -133,13 +132,13 @@ public void onMouseMove(int mouseX, int mouseY) {
         lastMouseX = mouseX;
         lastMouseY = mouseY;
         if (lastMouseButton != -1) {
-            computer.queueEvent("mouse_drag", new Object[]{ lastMouseButton + 1, mouseX + 1, mouseY + 1 });
+            ComputerEvents.mouseDrag(computer, lastMouseButton + 1, mouseX + 1, mouseY + 1);
         }
     }
 
     public void onMouseScroll(double yOffset) {
         if (yOffset != 0) {
-            computer.queueEvent("mouse_scroll", new Object[]{ yOffset < 0 ? 1 : -1, lastMouseX + 1, lastMouseY + 1 });
+            ComputerEvents.mouseScroll(computer, yOffset < 0 ? 1 : -1, lastMouseX + 1, lastMouseY + 1);
         }
     }