diff --git a/dist/build-crates-debian-main.js b/dist/build-crates-debian-main.js
index 82243db..ceeaf4c 100644
--- a/dist/build-crates-debian-main.js
+++ b/dist/build-crates-debian-main.js
@@ -128404,14 +128404,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
     const crossManifest = toml.parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
diff --git a/dist/build-crates-standalone-main.js b/dist/build-crates-standalone-main.js
index 3da0614..d8ead99 100644
--- a/dist/build-crates-standalone-main.js
+++ b/dist/build-crates-standalone-main.js
@@ -128403,14 +128403,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await promises_.readFile((0,external_path_.join)(path, "Cross.toml"), "utf-8");
     const crossManifest = parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        command_sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    command_sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     command_sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
@@ -128458,11 +128454,11 @@ function cloneFromGitHub(repo, options) {
     const remote = options.token == undefined ? `https://github.com/${repo}.git` : `https://${options.token}@github.com/${repo}.git`;
     const command = ["git", "clone", "--recursive", "--single-branch"];
     if (options.branch != undefined) {
-        command.concat("--branch", options.branch);
+        command.push("--branch", options.branch);
     }
-    command.concat(remote);
+    command.push(remote);
     if (options.path != undefined) {
-        command.concat(options.path);
+        command.push(options.path);
     }
     command_sh(command.join(" "));
 }
diff --git a/dist/bump-crates-main.js b/dist/bump-crates-main.js
index 4c5be19..9de7299 100644
--- a/dist/bump-crates-main.js
+++ b/dist/bump-crates-main.js
@@ -82262,14 +82262,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
     const crossManifest = toml.parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
diff --git a/dist/publish-crates-cargo-main.js b/dist/publish-crates-cargo-main.js
index e1a899d..aeb0372 100644
--- a/dist/publish-crates-cargo-main.js
+++ b/dist/publish-crates-cargo-main.js
@@ -82262,14 +82262,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
     const crossManifest = toml.parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
diff --git a/dist/publish-crates-debian-main.js b/dist/publish-crates-debian-main.js
index 8837e8b..4b1e137 100644
--- a/dist/publish-crates-debian-main.js
+++ b/dist/publish-crates-debian-main.js
@@ -128426,14 +128426,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
     const crossManifest = toml.parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
diff --git a/dist/publish-crates-eclipse-main.js b/dist/publish-crates-eclipse-main.js
index 612f70a..ab9e32a 100644
--- a/dist/publish-crates-eclipse-main.js
+++ b/dist/publish-crates-eclipse-main.js
@@ -128423,14 +128423,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
     const crossManifest = toml.parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
@@ -128478,11 +128474,11 @@ function cloneFromGitHub(repo, options) {
     const remote = options.token == undefined ? `https://github.com/${repo}.git` : `https://${options.token}@github.com/${repo}.git`;
     const command = ["git", "clone", "--recursive", "--single-branch"];
     if (options.branch != undefined) {
-        command.concat("--branch", options.branch);
+        command.push("--branch", options.branch);
     }
-    command.concat(remote);
+    command.push(remote);
     if (options.path != undefined) {
-        command.concat(options.path);
+        command.push(options.path);
     }
     sh(command.join(" "));
 }
diff --git a/dist/publish-crates-github-main.js b/dist/publish-crates-github-main.js
index 1fe14b3..eb48ac4 100644
--- a/dist/publish-crates-github-main.js
+++ b/dist/publish-crates-github-main.js
@@ -128404,14 +128404,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
     const crossManifest = toml.parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
@@ -128535,11 +128531,11 @@ function cloneFromGitHub(repo, options) {
     const remote = options.token == undefined ? `https://github.com/${repo}.git` : `https://${options.token}@github.com/${repo}.git`;
     const command = ["git", "clone", "--recursive", "--single-branch"];
     if (options.branch != undefined) {
-        command.concat("--branch", options.branch);
+        command.push("--branch", options.branch);
     }
-    command.concat(remote);
+    command.push(remote);
     if (options.path != undefined) {
-        command.concat(options.path);
+        command.push(options.path);
     }
     sh(command.join(" "));
 }
diff --git a/dist/publish-crates-homebrew-main.js b/dist/publish-crates-homebrew-main.js
index 1972049..8af4993 100644
--- a/dist/publish-crates-homebrew-main.js
+++ b/dist/publish-crates-homebrew-main.js
@@ -128425,14 +128425,10 @@ async function installBinaryCached(name) {
 async function build(path, target) {
     const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
     const crossManifest = toml.parse(crossContents);
-    if (target == undefined) {
-        target ??= hostTarget();
-    }
-    else {
-        sh(`rustup target add ${target}`, { cwd: path });
-    }
+    target ??= hostTarget();
+    sh(`rustup target add ${target}`, { cwd: path });
     const command = target in crossManifest ? ["cross"] : ["cargo"];
-    command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+    command.push("build", "--release", "--bins", "--lib", "--target", target);
     sh(command.join(" "), { cwd: path });
 }
 function hostTarget() {
@@ -128480,11 +128476,11 @@ function cloneFromGitHub(repo, options) {
     const remote = options.token == undefined ? `https://github.com/${repo}.git` : `https://${options.token}@github.com/${repo}.git`;
     const command = ["git", "clone", "--recursive", "--single-branch"];
     if (options.branch != undefined) {
-        command.concat("--branch", options.branch);
+        command.push("--branch", options.branch);
     }
-    command.concat(remote);
+    command.push(remote);
     if (options.path != undefined) {
-        command.concat(options.path);
+        command.push(options.path);
     }
     sh(command.join(" "));
 }
diff --git a/src/cargo.ts b/src/cargo.ts
index 1491d49..ee5bf2b 100644
--- a/src/cargo.ts
+++ b/src/cargo.ts
@@ -308,14 +308,12 @@ export async function build(path: string, target?: string) {
   const crossContents = await fs.readFile(join(path, "Cross.toml"), "utf-8");
   const crossManifest = toml.parse(crossContents) as CrossManifest;
 
-  if (target == undefined) {
-    target ??= hostTarget();
-  } else {
-    sh(`rustup target add ${target}`, { cwd: path });
-  }
+  target ??= hostTarget();
+
+  sh(`rustup target add ${target}`, { cwd: path });
 
   const command = target in crossManifest ? ["cross"] : ["cargo"];
-  command.concat("cross", "build", "--release", "--bins", "--lib", "--target", target);
+  command.push("build", "--release", "--bins", "--lib", "--target", target);
   sh(command.join(" "), { cwd: path });
 }
 
diff --git a/src/git.ts b/src/git.ts
index 500ec43..51966c3 100644
--- a/src/git.ts
+++ b/src/git.ts
@@ -12,11 +12,11 @@ export function cloneFromGitHub(repo: string, options: CloneFromGitHubOptions) {
 
   const command = ["git", "clone", "--recursive", "--single-branch"];
   if (options.branch != undefined) {
-    command.concat("--branch", options.branch);
+    command.push("--branch", options.branch);
   }
-  command.concat(remote);
+  command.push(remote);
   if (options.path != undefined) {
-    command.concat(options.path);
+    command.push(options.path);
   }
 
   sh(command.join(" "));