Add python lib, better formatting

Author: dhairs

.bazelrc

@@ -2,3 +2,5 @@
 
 build --incompatible_enable_cc_toolchain_resolution
 build --platforms=//:arm_none_eabi
+build:firmware --platforms=//:arm_none_eabi
+run --platforms=@platforms//host

.gitignore

@@ -74,4 +74,5 @@ bazel*
 .cache
 build/
 .stm32env
-compile_commands.json
+compile_commands.json
+external/

MODULE.bazel

@@ -14,3 +14,28 @@ arm_toolchain.arm_none_eabi(version = "13.2.1")
 use_repo(arm_toolchain, "arm_none_eabi")
 # register_toolchains("@arm_none_eabi//toolchain:all")
 register_toolchains("//toolchain:all")
+
+bazel_dep(name = "rules_python", version = "1.5.3")
+
+python = use_extension("@rules_python//python/extensions:python.bzl", "python")
+python.toolchain(
+    python_version = "3.13",
+)
+
+pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
+pip.parse(
+    hub_name = "pypi",
+    python_version = "3.13",
+    requirements_lock = "//:requirements_lock.txt",
+)
+
+use_repo(pip, "pypi")
+
+bazel_dep(name = "hedron_compile_commands", dev_dependency = True)
+git_override(
+    module_name = "hedron_compile_commands",
+    remote = "https://github.com/hedronvision/bazel-compile-commands-extractor.git",
+    commit = "0e990032f3c5a866e72615cf67e5ce22186dcb97",
+    # Replace the commit hash (above) with the latest (https://github.com/hedronvision/bazel-compile-commands-extractor/commits/main).
+    # Even better, set up Renovate and let it do the work for you (see "Suggestion: Updates" in the README).
+)