diff --git a/tools/regz/.buildkite/pipeline.yml b/tools/regz/.buildkite/pipeline.yml
deleted file mode 100644
index 8f0e476b..00000000
--- a/tools/regz/.buildkite/pipeline.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-steps:
-  - group: Build and Test
-    steps:
-    - command: zig build test
-
-
-  - group: Crosscompile
-    steps:
-    - label: "Target: {{matrix.target}} :zap:"
-      command: "zig build -Dtarget={{matrix.target}}"
-      matrix:
-        setup:
-          target:
-          - "aarch64-linux-gnu"
-          - "aarch64-linux-musl"
-          - "aarch64-macos"
-          - "x86-linux-gnu"
-          - "x86-linux-musl"
-            # TODO: when _tls_index is fixed
-            #- "x86-windows"
-          - "x86_64-linux-gnu"
-          - "x86_64-linux-musl"
-          - "x86_64-macos"
-          - "x86_64-windows-gnu"
diff --git a/tools/regz/.gitattributes b/tools/regz/.gitattributes
deleted file mode 100644
index d6618dff..00000000
--- a/tools/regz/.gitattributes
+++ /dev/null
@@ -1,2 +0,0 @@
-*.zig text eol=lf
-.gyro/** linguist-vendored
diff --git a/tools/regz/.gitignore b/tools/regz/.gitignore
deleted file mode 100644
index ca24f1ae..00000000
--- a/tools/regz/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-zig-cache
-zig-out
-data
-*.regz
diff --git a/tools/regz/.gitmodules b/tools/regz/.gitmodules
deleted file mode 100644
index e69de29b..00000000
diff --git a/tools/uf2/.gitignore b/tools/uf2/.gitignore
deleted file mode 100644
index 4c82b07c..00000000
--- a/tools/uf2/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-zig-cache
-zig-out
diff --git a/tools/uf2/.gitmodules b/tools/uf2/.gitmodules
deleted file mode 100644
index a51df892..00000000
--- a/tools/uf2/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "deps/uf2"]
-	path = deps/uf2
-	url = https://github.com/microsoft/uf2.git