diff --git a/3rdparty/tools/act/.actrc b/3rdparty/tools/act/.actrc
index 5c08277ae70..10685d4c411 100644
--- a/3rdparty/tools/act/.actrc
+++ b/3rdparty/tools/act/.actrc
@@ -1 +1 @@
--P ubuntu-latest=catthehacker/ubuntu:act-latest
+-P ubuntu-latest=catthehacker/ubuntu:act-latest
\ No newline at end of file
diff --git a/3rdparty/tools/act/BUILD b/3rdparty/tools/act/BUILD
index 60ec99cace6..00b48fa7677 100644
--- a/3rdparty/tools/act/BUILD
+++ b/3rdparty/tools/act/BUILD
@@ -61,4 +61,4 @@ run_shell_command(
     command="XDG_CONFIG_DIRS=${CHROOT}:$XDG_CONFIG_DIRS {chroot}/act $@",
     workdir="/",
     execution_dependencies=[":act-at-root"],
-)
+)
\ No newline at end of file
diff --git a/3rdparty/tools/gh/BUILD b/3rdparty/tools/gh/BUILD
deleted file mode 100644
index 619c08fd354..00000000000
--- a/3rdparty/tools/gh/BUILD
+++ /dev/null
@@ -1,61 +0,0 @@
-# Copyright 2023 Pants project contributors (see CONTRIBUTORS.md).
-# Licensed under the Apache License, Version 2.0 (see LICENSE).
-
-# Targets for running the GitHub CLI (or `gh`): https://cli.github.com/
-# Use `pants run 3rdparty/tools/gh -- <args>`
-
-file(
-    name="downloaded-gh",
-    source=per_platform(
-        macos_x86_64=http_source(
-            url="https://github.com/cli/cli/releases/download/v2.32.0/gh_2.32.0_macOS_amd64.zip",
-            len=10957234,
-            sha256="e6dd7cb61338c6aab27dfc744bf74817f26a938e505a8e817316513ebf02eb57",
-            filename="gh.archive",
-        ),
-        macos_arm64=http_source(
-            url="https://github.com/cli/cli/releases/download/v2.32.0/gh_2.32.0_macOS_arm64.zip",
-            len=10318229,
-            sha256="6df08a326a4c00e6d33f49c458402c8a3921fd71a2f3187ce77ddb6c452d73f0",
-            filename="gh.archive",
-        ),
-        linux_x86_64=http_source(
-            url="https://github.com/cli/cli/releases/download/v2.32.0/gh_2.32.0_linux_amd64.tar.gz",
-            len=10315710,
-            sha256="2e306f118a46764bc1763bacc52e7b18eeca5aa6fd59d2b5fd260f0ef3cd87ae",
-            filename="gh.archive",
-        ),
-        linux_arm64=http_source(
-            url="https://github.com/cli/cli/releases/download/v2.32.0/gh_2.32.0_linux_arm64.tar.gz",
-            len=9410807,
-            sha256="9eff1eb5d13a3fa858859bd2995077f8987a89d352548a3c116af0536f49afc0",
-            filename="gh.archive",
-        ),
-    ),
-)
-
-shell_source(
-    name="extract.sh",
-    source="extract.sh",
-)
-
-shell_command(
-    name="extracted-gh",
-    command="./extract.sh",
-    tools=["tar", "gzip", "zip", "mv", "mkdir", "bash"],
-    execution_dependencies=[":downloaded-gh", ":extract.sh"],
-    output_directories=["gh"],
-)
-
-relocated_files(
-    name="relocated-gh",
-    files_targets=[":extracted-gh"],
-    src="3rdparty/tools/gh/gh",
-    dest="3rdparty/tools/gh",
-)
-
-run_shell_command(
-    name="gh",
-    command="{chroot}/3rdparty/tools/gh/bin/gh",
-    execution_dependencies=[":relocated-gh"],
-)
diff --git a/3rdparty/tools/gh/extract.sh b/3rdparty/tools/gh/extract.sh
deleted file mode 100755
index 53a983f253b..00000000000
--- a/3rdparty/tools/gh/extract.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env bash
-set -eu
-
-mkdir tmp
-unzip gh.archive -d tmp || tar -xzf gh.archive -C tmp
-mv tmp/* gh/
diff --git a/3rdparty/tools/protoc/BUILD b/3rdparty/tools/protoc/BUILD
deleted file mode 100644
index a9fea0eb186..00000000000
--- a/3rdparty/tools/protoc/BUILD
+++ /dev/null
@@ -1,40 +0,0 @@
-# Copyright 2023 Pants project contributors (see CONTRIBUTORS.md).
-# Licensed under the Apache License, Version 2.0 (see LICENSE).
-
-file(
-    name="compressed-protoc",
-    source=per_platform(
-        linux_arm64=http_source(
-            url="https://github.com/protocolbuffers/protobuf/releases/download/v24.3/protoc-24.3-linux-aarch_64.zip",
-            len=2971115,
-            sha256="77a5a41f3e9712af6a35de13143b9b2b77f075aa1ab18a63cca4483b30f6e3cd",
-            filename="protoc.zip",
-        ),
-        linux_x86_64=http_source(
-            url="https://github.com/protocolbuffers/protobuf/releases/download/v24.3/protoc-24.3-linux-x86_64.zip",
-            len=3005508,
-            sha256="fc793561283d9ea6813fb757ae54f1afea6770afcd930904bdf3e590910420aa",
-            filename="protoc.zip",
-        ),
-        macos_arm64=http_source(
-            url="https://github.com/protocolbuffers/protobuf/releases/download/v24.3/protoc-24.3-osx-aarch_64.zip",
-            len=2089053,
-            sha256="cca53adb73a6686dd60bb3b0da33961e6b9dab1f833c851b5e1bb7b5df02b36f",
-            filename="protoc.zip",
-        ),
-        macos_x86_64=http_source(
-            url="https://github.com/protocolbuffers/protobuf/releases/download/v24.3/protoc-24.3-osx-x86_64.zip",
-            len=2121387,
-            sha256="13b45cdcde9b2101e982de897d5490cfd81dfa181605749c23982379ba0e3288",
-            filename="protoc.zip",
-        ),
-    ),
-)
-
-shell_command(
-    name="protoc",
-    command="unzip protoc.zip -d protoc",
-    tools=["unzip"],
-    execution_dependencies=[":compressed-protoc"],
-    output_directories=["protoc"],
-)
diff --git a/3rdparty/tools/python3/BUILD b/3rdparty/tools/python3/BUILD
deleted file mode 100644
index 5a3a0a6150b..00000000000
--- a/3rdparty/tools/python3/BUILD
+++ /dev/null
@@ -1,40 +0,0 @@
-# Copyright 2023 Pants project contributors (see CONTRIBUTORS.md).
-# Licensed under the Apache License, Version 2.0 (see LICENSE).
-
-file(
-    name="compressed-python-build-standalone-3.9",
-    source=per_platform(
-        linux_arm64=http_source(
-            url="https://github.com/astral-sh/python-build-standalone/releases/download/20230507/cpython-3.9.16+20230507-aarch64-unknown-linux-gnu-install_only.tar.gz",
-            len=23583066,
-            sha256="f629b75ebfcafe9ceee2e796b7e4df5cf8dbd14f3c021afca078d159ab797acf",
-            filename="python-build-standalone.tar.gz",
-        ),
-        linux_x86_64=http_source(
-            url="https://github.com/astral-sh/python-build-standalone/releases/download/20230507/cpython-3.9.16+20230507-x86_64-unknown-linux-gnu-install_only.tar.gz",
-            len=25738357,
-            sha256="2b6e146234a4ef2a8946081fc3fbfffe0765b80b690425a49ebe40b47c33445b",
-            filename="python-build-standalone.tar.gz",
-        ),
-        macos_arm64=http_source(
-            url="https://github.com/astral-sh/python-build-standalone/releases/download/20230507/cpython-3.9.16+20230507-aarch64-apple-darwin-install_only.tar.gz",
-            len=16634170,
-            sha256="c1de1d854717a6245f45262ef1bb17b09e2c587590e7e3f406593c143ff875bd",
-            filename="python-build-standalone.tar.gz",
-        ),
-        macos_x86_64=http_source(
-            url="https://github.com/astral-sh/python-build-standalone/releases/download/20230507/cpython-3.9.16+20230507-x86_64-apple-darwin-install_only.tar.gz",
-            len=16908516,
-            sha256="3abc4d5fbbc80f5f848f280927ac5d13de8dc03aabb6ae65d8247cbb68e6f6bf",
-            filename="python-build-standalone.tar.gz",
-        ),
-    ),
-)
-
-shell_command(
-    name="python3",
-    command="tar -xzf python-build-standalone.tar.gz",
-    tools=["tar", "gzip"],
-    execution_dependencies=[":compressed-python-build-standalone-3.9"],
-    output_directories=["python"],
-)
diff --git a/3rdparty/tools/rust/BUILD b/3rdparty/tools/rust/BUILD
deleted file mode 100644
index 89e2ef526a7..00000000000
--- a/3rdparty/tools/rust/BUILD
+++ /dev/null
@@ -1,58 +0,0 @@
-# Copyright 2023 Pants project contributors (see CONTRIBUTORS.md).
-# Licensed under the Apache License, Version 2.0 (see LICENSE).
-
-file(
-    name="rustup-init",
-    source=per_platform(
-        linux_arm64=http_source(
-            url="https://static.rust-lang.org/rustup/archive/1.26.0/aarch64-unknown-linux-gnu/rustup-init",
-            len=14131368,
-            sha256="673e336c81c65e6b16dcdede33f4cc9ed0f08bde1dbe7a935f113605292dc800",
-        ),
-        linux_x86_64=http_source(
-            url="https://static.rust-lang.org/rustup/archive/1.26.0/x86_64-unknown-linux-gnu/rustup-init",
-            len=14293176,
-            sha256="0b2f6c8f85a3d02fde2efc0ced4657869d73fccfce59defb4e8d29233116e6db",
-        ),
-        macos_arm64=http_source(
-            url="https://static.rust-lang.org/rustup/archive/1.26.0/aarch64-apple-darwin/rustup-init",
-            len=8000713,
-            sha256="ed299a8fe762dc28161a99a03cf62836977524ad557ad70e13882d2f375d3983",
-        ),
-        macos_x86_64=http_source(
-            url="https://static.rust-lang.org/rustup/archive/1.26.0/x86_64-apple-darwin/rustup-init",
-            len=8670640,
-            sha256="f6d1a9fac1a0d0802d87c254f02369a79973bc8c55aa0016d34af4fcdbd67822",
-        ),
-    ),
-)
-
-shell_command(
-    name="cargo-shim",
-    command="""
-        chmod +x rustup-init
-        ./rustup-init --no-modify-path --no-update-default-toolchain --profile minimal --default-toolchain none -y
-    """,
-    extra_env_vars=["RUSTUP_HOME=dummy", "CARGO_HOME=shims"],
-    tools=["chmod"],
-    execution_dependencies=[":rustup-init"],
-    output_directories=["shims/bin"],
-)
-
-shell_command(
-    name="cargo",
-    command="""
-        mv ../../../src/rust/rust-toolchain rust-toolchain
-        ./shims/bin/rustup set profile minimal
-        ./shims/bin/cargo version
-        mv toolchains/* cargo
-    """,
-    extra_env_vars=["RUSTUP_HOME=."],
-    tools=["mv"],
-    execution_dependencies=[
-        ":cargo-shim",
-        "src/rust:rust-toolchain",
-    ],
-    output_directories=["cargo"],
-    timeout=600,
-)
diff --git a/src/rust/BUILD b/src/rust/BUILD
deleted file mode 100644
index 28601540c62..00000000000
--- a/src/rust/BUILD
+++ /dev/null
@@ -1,75 +0,0 @@
-# Copyright 2023 Pants project contributors (see CONTRIBUTORS.md).
-# Licensed under the Apache License, Version 2.0 (see LICENSE).
-
-files(
-    name="rust_sources",
-    sources=[
-        "Cargo.lock",
-        "build.rs",
-        "VERSION",
-        "**/Cargo.toml",
-        "**/*.rs",
-        "!**/*tests.rs",
-        "**/*.proto",
-        ".cargo/config.toml",
-    ],
-)
-
-file(
-    name="rust-toolchain",
-    source="rust-toolchain",
-)
-
-_RELTYPE_FLAG = "" if env("MODE") == "debug" else "--release"
-
-shell_command(
-    name="engine-and-client",
-    command=f"""
-        PATH="${{PATH}}:{{chroot}}/3rdparty/tools/python3/python/bin";
-        PATH="${{PATH}}:{{chroot}}/3rdparty/tools/protoc/protoc/bin";
-        PATH="${{PATH}}:{{chroot}}/3rdparty/tools/rust/cargo/bin";
-
-        cargo build {_RELTYPE_FLAG} --features=extension-module -p engine -p client
-    """,
-    execution_dependencies=[
-        ":rust_sources",
-        "3rdparty/tools/protoc:protoc",
-        "3rdparty/tools/python3:python3",
-        "3rdparty/tools/rust:cargo",
-    ],
-    tools=["bash", "cc", "ld", "as", "ar"],
-    output_files=[
-        f"target/debug/libengine.so",
-        f"target/debug/libengine.dylib",
-        f"target/debug/pants",
-        f"target/release/libengine.so",
-        f"target/release/libengine.dylib",
-        f"target/release/pants",
-    ],
-    timeout=600,
-)
-
-files(
-    name="all_rust_source_files",
-    sources=["**/*.rs"],
-)
-
-# NB: This should be in `lint` when we implement `lint` in https://github.com/pantsbuild/pants/issues/17729
-test_shell_command(
-    name="checks-rust-banned-imports",
-    command=f"""
-        BAD_FILES=$(grep -r -l -E "^use std::sync::.*(Mutex|RwLock)" {build_file_dir()});
-        if [ -n "$BAD_FILES" ]; then
-            echo "The following files contained banned \\`std::sync\\` imports (\\`Mutex\\` and \\`RWLock\\`).";
-            echo "(Hint: Use the \\`parking_lot::\\` equivalent)";
-            echo "";
-            echo "$BAD_FILES";
-            exit 1;
-        else
-            exit 0;
-        fi
-    """,
-    tools=["grep", "echo"],
-    execution_dependencies=[":all_rust_source_files"],
-    workdir="/",
-)