The default build tries to download a python executable and all required python modules during
the build process. While we can pre-populate the Bazel modules to avoid downloading them,
we cannot prevent poetry from attempting to access PyPI.

Additionally, local_host_values expects to use the downloaded python binary to get the number
of CPUs on the local system. Since we are not using thin_lto, it is simpler to remove this
rather than trying to force it to use the sytem python.

This patch allows us to use the system python and removes the rules_poetry Bazel module.
Additional references to poetry and the downloaded python interpreter are removed by the ebuild.

diff '--color=auto' -ur a/bazel/mongo_src_rules.bzl b/bazel/mongo_src_rules.bzl
--- a/bazel/mongo_src_rules.bzl	2026-06-15 18:37:04.000000000 -0400
+++ b/bazel/mongo_src_rules.bzl	2026-07-23 13:00:38.576931113 -0400
@@ -26,7 +26,6 @@
     "extract_debuginfo_binary",
     "extract_debuginfo_test",
 )
-load("@local_host_values//:local_host_values_set.bzl", "NUM_CPUS")
 load("@evergreen_variables//:evergreen_variables.bzl", "UNSAFE_COMPILE_VARIANT", "UNSAFE_VERSION_ID")
 load("//bazel/toolchains/cc/mongo_windows:mongo_windows_cc_toolchain_config.bzl", "MIN_VER_MAP")
 load("@bazel_skylib//rules:common_settings.bzl", "BuildSettingInfo")
@@ -670,9 +669,6 @@
         "data": data + SANITIZER_DATA + ["//bazel:test_wrapper"],
         "tags": tags,
         "linkopts": linkopts + rpath_flags + select({
-            "//bazel/config:thin_lto_enabled": ["-Wl,--threads=" + str(NUM_CPUS)],
-            "//conditions:default": [],
-        }) + select({
             "//bazel/config:simple_build_id_enabled": ["-Wl,--build-id=0x" +
                                                        hex32(hash(name)) +
                                                        hex32(hash(name)) +
@@ -698,9 +694,6 @@
             "@platforms//os:windows": {"cpp_link.coefficient": "1.0"},
             "//conditions:default": {"cpp_link.coefficient": "18.0"},
         }) | select({
-            "//bazel/config:thin_lto_enabled": {"cpp_link.cpus": str(NUM_CPUS)},
-            "//conditions:default": {},
-        }) | select({
             "//bazel/config:remote_link_arm_linux_linkstatic": {"cpp_link.Pool": "arm_linker"},
             "//conditions:default": {},
         }),
diff '--color=auto' -ur a/MODULE.bazel b/MODULE.bazel
--- a/MODULE.bazel	2026-06-15 18:37:04.000000000 -0400
+++ b/MODULE.bazel	2026-07-23 13:01:05.110856938 -0400
@@ -115,13 +115,6 @@
     version = "6.3.0",
 )
 
-bazel_dep(name = "rules_poetry", version = "")
-git_override(
-    module_name = "rules_poetry",
-    commit = "092d43107d13e711ac4ac92050d8b570bcc8ef43",
-    patches = ["//bazel/rules_poetry:rules_poetry.patch"],
-    remote = "https://github.com/mongodb-forks/rules_poetry",
-)
 
 #
 ## We need skylib to be able to use config_setting_group in rule_poetry below
@@ -258,20 +251,10 @@
     "py_windows_x86_64",
 )
 
-register_toolchains(
-    "@py_linux_arm64//:python_toolchain",
-    "@py_linux_ppc64le//:python_toolchain",
-    "@py_linux_s390x//:python_toolchain",
-    "@py_linux_x86_64//:python_toolchain",
-    "@py_macos_arm64//:python_toolchain",
-    "@py_macos_x86_64//:python_toolchain",
-    "@py_windows_x86_64//:python_toolchain",
-)
 
 # broken on windows currently
 setup_local_host_values = use_repo_rule("//bazel/platforms:local_host_values.bzl", "setup_local_host_values")
 
-setup_local_host_values(name = "local_host_values")
 
 setup_evergreen_variables = use_repo_rule("//bazel/repository_rules:evergreen_variables.bzl", "setup_evergreen_variables")
 
@@ -295,3 +278,28 @@
 use_repo(setup_mongo_windows_toolchains_extension, "mongo_windows_toolchain")
 
 register_toolchains("@mongo_windows_toolchain//...")
+
+local_runtime_repo = use_repo_rule(
+    "@rules_python//python/local_toolchains:repos.bzl",
+    "local_runtime_repo",
+)
+
+local_runtime_toolchains_repo = use_repo_rule(
+    "@rules_python//python/local_toolchains:repos.bzl",
+    "local_runtime_toolchains_repo",
+)
+
+local_runtime_repo(
+    name = "gentoo_python",
+    interpreter_path = "@PYTHON@",
+    on_failure = "fail",
+    dev_dependency = True
+)
+
+local_runtime_toolchains_repo(
+    name = "gentoo_python_toolchain",
+    runtimes = ["gentoo_python"],
+    dev_dependency = True
+)
+
+register_toolchains("@gentoo_python_toolchain//:all", dev_dependency = True)
diff '--color=auto' -ur a/WORKSPACE.bazel b/WORKSPACE.bazel
--- a/WORKSPACE.bazel	2026-06-15 18:37:04.000000000 -0400
+++ b/WORKSPACE.bazel	2026-07-23 13:00:38.577333981 -0400
@@ -107,19 +107,6 @@
 
 rules_coverity_toolchains()
 
-load("@rules_poetry//rules_poetry:poetry.bzl", "poetry")
-
-poetry(
-    name = "poetry",
-    excludes = [
-        "mdit-py-plugins",  # plugins for markdown-it-py. Introduces an optional circular dependency that bazel does not like.
-    ],
-    lockfile = "//:poetry.lock",
-    pyproject = "//:pyproject.toml",
-    python_interpreter_target_default = "@py_host//:dist/bin/python3",
-    python_interpreter_target_mac = "@py_host//:dist/bin/python3",
-    python_interpreter_target_win = "@py_host//:dist/python.exe",
-)
 
 load("@aspect_rules_js//js:toolchains.bzl", "DEFAULT_NODE_VERSION", "rules_js_register_toolchains")
 
@@ -187,14 +174,6 @@
 
 codeowners_binary()
 
-poetry(
-    name = "poetry_bazel_rules_mongo",
-    lockfile = "@bazel_rules_mongo//:poetry.lock",
-    pyproject = "@bazel_rules_mongo//:pyproject.toml",
-    python_interpreter_target_default = "@py_host//:dist/bin/python3",
-    python_interpreter_target_mac = "@py_host//:dist/bin/python3",
-    python_interpreter_target_win = "@py_host//:dist/python.exe",
-)
 
 load("//bazel/format:shfmt.bzl", "shfmt")
 
@@ -207,3 +186,6 @@
 load("//bazel/mongot_extension_signing_key:mongot_extension_signing_key.bzl", "mongot_extension_signing_key")
 
 mongot_extension_signing_key()
+
+load("@rules_python//python:repositories.bzl", "py_repositories")
+py_repositories()