diff --git a/MODULE.bazel b/MODULE.bazel
index a25ccc71..ca7bde12 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -78,6 +78,14 @@ bazel_dep(name = "rules_proto", version = "6.0.2")
 bazel_dep(name = "toolchains_protoc", version = "0.3.1")
 bazel_dep(name = "protobuf", version = "27.2")
 
+# Load musl toolchain Metropolis sysroot tarball into external repository.
+musl_sysroot_rule = use_repo_rule("//build/toolchain/musl-host-gcc:sysroot_repository.bzl", "musl_sysroot_rule")
+
+musl_sysroot_rule(
+    name = "musl_sysroot",
+    snapshot = "//build/toolchain/musl-host-gcc:sysroot.tar.xz",
+)
+
 # Register our custom CC toolchains. Order matters - more specific toolchains must be registered first.
 # (host_cc_toolchain won't care about //build/platforms/linkmode, but musl_host_toolchain won't
 # match anything unless its linkmode is set).
diff --git a/WORKSPACE b/WORKSPACE
index 47cb9f35..d6d637c6 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -1,147 +1,5 @@
 workspace(name = "dev_source_monogon")
 
-# Assert minimum Bazel version
-load("@bazel_skylib//lib:versions.bzl", "versions")
-
-versions.check(minimum_bazel_version = "7.2.1")
-
-# third_party external repositories
-load("//third_party/linux:external.bzl", "linux_external")
-
-linux_external(
-    name = "linux",
-    version = "6.6.42",
-)
-
-load("//third_party/linux-firmware:external.bzl", "linux_firmware_external")
-
-linux_firmware_external(
-    name = "linux-firmware",
-    version = "20240513",
-)
-
-load("//third_party/intel_ucode:external.bzl", "intel_ucode_external")
-
-intel_ucode_external(
-    name = "intel_ucode",
-    version = "20231114",
-)
-
-load("//third_party/edk2:external.bzl", "edk2_external")
-
-edk2_external(name = "edk2")
-
-load("//third_party/musl:external.bzl", "musl_external")
-
-musl_external(
-    name = "musl",
-    version = "1.1.24",
-)
-
-load("//third_party/util-linux:external.bzl", "util_linux_external")
-
-util_linux_external(
-    name = "util_linux",
-    version = "2.36.2",
-)
-load("//third_party/urcu:external.bzl", "urcu_external")
-
-urcu_external(
-    name = "urcu",
-    version = "0.14.0",
-)
-
-load("//third_party/xfsprogs:external.bzl", "xfsprogs_external")
-
-xfsprogs_external(
-    name = "xfsprogs",
-    version = "6.9.0",
-)
-
-load("//third_party/pixman:external.bzl", "pixman_external")
-
-pixman_external(
-    name = "pixman",
-    version = "0.40.0",
-)
-
-load("//third_party/uring:external.bzl", "uring_external")
-
-uring_external(
-    name = "uring",
-    version = "2.0",
-)
-
-
-load("//third_party/seccomp:external.bzl", "seccomp_external")
-
-seccomp_external(
-    name = "seccomp",
-    version = "2.5.1",
-)
-
-load("//third_party/glib:external.bzl", "glib_external")
-
-glib_external(
-    name = "glib",
-    version = "2.67.5",
-)
-
-load("//third_party/qemu:external.bzl", "qemu_external")
-
-qemu_external(
-    name = "qemu",
-    version = "5.2.0",
-)
-
-load("//third_party/chrony:external.bzl", "chrony_external")
-
-chrony_external(
-    name = "chrony",
-)
-
-load("//third_party/cap:external.bzl", "cap_external")
-
-cap_external(
-    name = "cap",
-    version = "1.2.55",
-)
-
-load("//third_party/gnuefi:external.bzl", "gnuefi_external")
-
-gnuefi_external(
-    name = "gnuefi",
-    version = "3.0.14",
-)
-
-load("//third_party/efistub:external.bzl", "efistub_external")
-
-efistub_external(
-    name = "efistub",
-    # Developed in the systemd monorepo, pinned to master as there have been a bunch of critical fixes for the
-    # EFI stub since 249.
-    version = "3542da2442d8b29661b47c42ad7e5fa9bc8562ec",
-)
-
-load("//third_party/libpg_query:external.bzl", "libpg_query_external")
-
-libpg_query_external(
-    name = "libpg_query",
-    version = "15-4.2.3",
-)
-
-load("//third_party/dosfstools:external.bzl", "dosfstools_external")
-
-dosfstools_external(
-    name = "com_github_dosfstools_dosfstools",
-    version = "c888797b1d84ffbb949f147e3116e8bfb2e145a7",
-)
-
-# Load musl toolchain Metropolis sysroot tarball into external repository.
-load("//build/toolchain/musl-host-gcc:sysroot.bzl", "musl_sysroot_repositories")
-
-musl_sysroot_repositories()
-
 # bazeldnf is used to generate our sandbox root.
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
@@ -160,17 +18,3 @@ bazeldnf_dependencies()
 load("//third_party/sandboxroot:repositories.bzl", "sandbox_dependencies")
 
 sandbox_dependencies()
-
-load("//third_party/libtpms:external.bzl", "libtpms_external")
-
-libtpms_external(
-    name = "libtpms",
-    version = "93a827aeccd3ab2178281571b1545dcfffa2991b",
-)
-
-load("//third_party/swtpm:external.bzl", "swtpm_external")
-
-swtpm_external(
-    name = "swtpm",
-    version = "0c9a6c4a12a63b86ab472e69e95bd75853d4fa96",
-)
diff --git a/build/bazel/third_party.MODULE.bazel b/build/bazel/third_party.MODULE.bazel
index 52fe2bcc..fa68cb89 100644
--- a/build/bazel/third_party.MODULE.bazel
+++ b/build/bazel/third_party.MODULE.bazel
@@ -9,7 +9,7 @@ http_file = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_
 # Used by tests in cloud/takeover
 http_file(
     name = "debian_11_cloudimage",
-    sha256 = "14caeec68ba3129a115a9b57396d08dc0973cc9f569ce049232d7d15d768ad41",
+    integrity = "sha256-FMruxoujEpoRWptXOW0I3AlzzJ9WnOBJIy19FddorUE=",
     urls = [
         "https://cloud.debian.org/images/cloud/bullseye/20230124-1270/debian-11-genericcloud-amd64-20230124-1270.qcow2",
     ],
@@ -35,64 +35,67 @@ git_repository(
 #
 # WARNING: Not distributed under an OSI certified license. Must only be used in
 # tests, not be redistributed!
+COCKROACH_VERSION = "22.1.6"
+
 http_archive(
     name = "cockroach",
-    build_file_content = """
-exports_files([
-    "cockroach"
-])
-""",
-    sha256 = "0821cff5770400fb94c8b6c2ab338d96f4114fbf2b3206bc8a6dcf62f9c0f4ea",
-    strip_prefix = "cockroach-v22.1.6.linux-amd64",
+    build_file = "//third_party/cockroach:BUILD.repo",
+    integrity = "sha256-CCHP9XcEAPuUyLbCqzONlvQRT78rMga8im3PYvnA9Oo=",
+    strip_prefix = "cockroach-v%s.linux-amd64" % COCKROACH_VERSION,
     urls = [
         # TODO: select() to pick other host architectures.
-        "https://binaries.cockroachdb.com/cockroach-v22.1.6.linux-amd64.tgz",
+        "https://binaries.cockroachdb.com/cockroach-v%s.linux-amd64.tgz" % COCKROACH_VERSION,
     ],
 )
 
 # CockroachDB repository used for linter passes.
 http_archive(
     name = "com_github_cockroachdb_cockroach",
-    integrity = "sha256-3xYgvXmuPvrGgtSzfoK/K9p/FCH0eMZywAAL10A41k0=",
-    strip_prefix = "cockroach-23.2.4",
+    integrity = "sha256-bDVo7yRM5rh0aU7u7Lg+1PXV3/bPA3yVLs3naCimxQI=",
+    strip_prefix = "cockroach-" + COCKROACH_VERSION,
     urls = [
-        "https://github.com/cockroachdb/cockroach/archive/v23.2.4.tar.gz",
+        "https://github.com/cockroachdb/cockroach/archive/v%s.tar.gz" % COCKROACH_VERSION,
     ],
 )
 
 # Derived from Mozilla NSS, currently needed for containerd to be able to pull images
 http_file(
     name = "cacerts",
-    sha256 = "1bf458412568e134a4514f5e170a328d11091e071c7110955c9884ed87972ac9",
+    integrity = "sha256-G/RYQSVo4TSkUU9eFwoyjREJHgcccRCVXJiE7YeXKsk=",
     urls = ["https://curl.se/ca/cacert-2024-07-02.pem"],
 )
 
 # lz4, the library and the tool.
+LZ4_VERSION = "1.9.2"
+
 http_archive(
     name = "com_github_lz4_lz4",
     patch_args = ["-p1"],
     patches = ["//third_party/lz4:build.patch"],
-    sha256 = "658ba6191fa44c92280d4aa2c271b0f4fbc0e34d249578dd05e50e76d0e5efcc",
-    strip_prefix = "lz4-1.9.2",
-    urls = ["https://github.com/lz4/lz4/archive/v1.9.2.tar.gz"],
+    strip_prefix = "lz4-" + LZ4_VERSION,
+    urls = ["https://github.com/lz4/lz4/archive/v%s.tar.gz" % LZ4_VERSION],
 )
 
 # ini.h, a tiny ini parser library
+INIH_VERSION = "r53"
+
 http_archive(
     name = "inih",
-    build_file = "@//third_party/inih:inih.bzl",
-    sha256 = "01b0366fdfdf6363efc070c2f856f1afa33e7a6546548bada5456ad94a516241",
-    strip_prefix = "inih-r53",
-    urls = ["https://github.com/benhoyt/inih/archive/r53.tar.gz"],
+    build_file = "//third_party/inih:inih.bzl",
+    integrity = "sha256-AbA2b9/fY2PvwHDC+Fbxr6M+emVGVIutpUVq2UpRYkE=",
+    strip_prefix = "inih-" + INIH_VERSION,
+    urls = ["https://github.com/benhoyt/inih/archive/%s.tar.gz" % INIH_VERSION],
 )
 
 # qboot bootloader for MicroVMs
+QBOOT_VERSION = "a5300c4949b8d4de2d34bedfaed66793f48ec948"
+
 http_archive(
     name = "com_github_bonzini_qboot",
     build_file = "//third_party/qboot:qboot.bzl",
-    sha256 = "a643b2486fbee57b969659d408984094ca9afa1a048317dd3f5d3022e47213e8",
-    strip_prefix = "qboot-a5300c4949b8d4de2d34bedfaed66793f48ec948",
-    urls = ["https://github.com/bonzini/qboot/archive/a5300c4949b8d4de2d34bedfaed66793f48ec948.tar.gz"],
+    integrity = "sha256-pkOySG++5XuWllnUCJhAlMqa+hoEgxfdP10wIuRyE+g=",
+    strip_prefix = "qboot-" + QBOOT_VERSION,
+    urls = ["https://github.com/bonzini/qboot/archive/%s.tar.gz" % QBOOT_VERSION],
 )
 
 git_repository(
@@ -101,3 +104,293 @@ git_repository(
     remote = "https://github.com/monogon-dev/gperf.git",
     shallow_since = "1615306886 +0100",
 )
+
+LINUX_VERSION = "6.6.42"
+
+http_archive(
+    name = "linux",
+    build_file = "//third_party/linux/external:BUILD.repo",
+    integrity = "sha256-iAHIwpfXdOdgRJd+w9BoQ5ncTnzONH1zCHTseLd05oM=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/linux/external:0001-block-partition-expose-PARTUUID-through-uevent.patch",
+        "//third_party/linux/external:disable-static-ifs.patch",
+        "//third_party/linux/external:enable-pmsg.patch",
+        "//third_party/linux/external:lacp_fix.patch",
+    ],
+    strip_prefix = "linux-" + LINUX_VERSION,
+    urls = ["https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-%s.tar.xz" % LINUX_VERSION],
+)
+
+LINUX_FIRMWARE_VERSION = "20240513"
+
+http_archive(
+    name = "linux-firmware",
+    build_file = "//third_party/linux-firmware:BUILD.repo",
+    integrity = "sha256-tyJDZOH9fua4A/hhdH+czefCAwr5Of3B7uoIPqhc5Rw=",
+    strip_prefix = "linux-firmware-" + LINUX_FIRMWARE_VERSION,
+    urls = ["https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/snapshot/linux-firmware-%s.tar.gz" % LINUX_FIRMWARE_VERSION],
+)
+
+INTEL_UCODE_VERSION = "20231114"
+
+http_archive(
+    name = "intel_ucode",
+    build_file = "//third_party/intel_ucode:BUILD.repo",
+    integrity = "sha256-zuJvMR9+LAOd1IzTD5lRg73puY+0wwOYAOLdr1wJDlU=",
+    strip_prefix = "Intel-Linux-Processor-Microcode-Data-Files-microcode-" + INTEL_UCODE_VERSION,
+    urls = ["https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/archive/refs/tags/microcode-%s.tar.gz" % INTEL_UCODE_VERSION],
+)
+
+git_repository(
+    name = "edk2",
+    build_file = "//third_party/edk2/external:BUILD.repo",
+    commit = "b24306f15daa2ff8510b06702114724b33895d3c",  # stable202202
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/edk2/patches:disable-werror.patch",
+        "//third_party/edk2/patches:remove-brotli-build.patch",
+    ],
+    recursive_init_submodules = True,
+    remote = "https://github.com/tianocore/edk2",
+    shallow_since = "1645456780 +0000",
+)
+
+MUSL_VERSION = "1.1.24"
+
+http_archive(
+    name = "musl",
+    build_file = "//third_party/musl:BUILD.repo",
+    integrity = "sha256-E3DJqBKyzyp9koAlEMygBYzDfmanvt1wBR8KNAFQIqM=",
+    strip_prefix = "musl-" + MUSL_VERSION,
+    urls = ["https://www.musl-libc.org/releases/musl-%s.tar.gz" % MUSL_VERSION],
+)
+
+UTIL_LINUX_VERSION = "2.36.2"
+
+http_archive(
+    name = "util_linux",
+    build_file = "//third_party/util-linux:util-linux.bzl",
+    integrity = "sha256-CEvG+b1Hm/146JJOY/hbsXlTaBvx2tJA5NhgGiEpTQs=",
+    patch_args = ["-p1"],
+    patches = ["//third_party/util-linux/patches:bazel_cc_fix.patch"],
+    strip_prefix = "util-linux-" + UTIL_LINUX_VERSION,
+    urls = ["https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/snapshot/util-linux-%s.tar.gz" % UTIL_LINUX_VERSION],
+)
+
+URCU_VERSION = "0.14.0"
+
+http_archive(
+    name = "urcu",
+    build_file = "//third_party/urcu:urcu.bzl",
+    integrity = "sha256-QvtRKaP//lpLeQ3+HqOnNMae4JX++/ZJMmJpu6lMJi0=",
+    patch_args = ["-p1"],
+    patches = ["//third_party/urcu/patches:generated-files.patch"],
+    strip_prefix = "userspace-rcu-" + URCU_VERSION,
+    urls = ["https://github.com/urcu/userspace-rcu/archive/refs/tags/v%s.tar.gz" % URCU_VERSION],
+)
+
+XFSPROGS_VERSION = "6.9.0"
+
+http_archive(
+    name = "xfsprogs",
+    build_file = "//third_party/xfsprogs:xfsprogs.bzl",
+    integrity = "sha256-/nIGlou9gXd1S6cy9jn4Ubacj3CsX5a7DhgtiGZBQL8=",
+    patch_args = ["-p1"],
+    patches = ["//third_party/xfsprogs/patches:bazel_cc_fix.patch"],
+    strip_prefix = "xfsprogs-dev-" + XFSPROGS_VERSION,
+    urls = ["https://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git/snapshot/xfsprogs-dev-%s.tar.gz" % XFSPROGS_VERSION],
+)
+
+PIXMAN_VERSION = "0.40.0"
+
+http_archive(
+    name = "pixman",
+    build_file = "//third_party/pixman:pixman.bzl",
+    integrity = "sha256-bSAN7DdA2exOyNEYDiV3nAC8dJ+UJ4yLkCH1U02yI/w=",
+    strip_prefix = "pixman-" + PIXMAN_VERSION + "/pixman",
+    urls = ["https://www.cairographics.org/releases/pixman-%s.tar.gz" % PIXMAN_VERSION],
+)
+
+URING_VERSION = "2.0"
+
+http_archive(
+    name = "uring",
+    build_file = "//third_party/uring:uring.bzl",
+    integrity = "sha256-ygaezEqhuvEDG9dy5Ol/fibftrtzPXn3AVlYmyKrTcA=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/uring/patches:bazel_cc_fix.patch",
+        "//third_party/uring/patches:include-compat-h.patch",
+    ],
+    strip_prefix = "liburing-liburing-" + URING_VERSION,
+    urls = ["https://github.com/axboe/liburing/archive/liburing-%s.tar.gz" % URING_VERSION],
+)
+
+# NOTE: Remember to update seccomp.bzl's seccomp.h template rule
+# with the correct version.
+SECCOMP_VERSION = "2.5.1"
+
+http_archive(
+    name = "seccomp",
+    build_file = "//third_party/seccomp:seccomp.bzl",
+    integrity = "sha256-dq1U4x0UOzmpkINWQEUhKpZeAmoQEKdC7deT0m1pmCk=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/seccomp/patches:bazel_cc_fix.patch",
+        "//third_party/seccomp/patches:fix_generated_includes.patch",
+    ],
+    strip_prefix = "libseccomp-" + SECCOMP_VERSION,
+    # We cannot use the actual release tarball as it contains files generated incorrectly for our environment
+    urls = ["https://github.com/seccomp/libseccomp/archive/v%s.tar.gz" % SECCOMP_VERSION],
+)
+
+GLIB_VERSION = "2.67.5"
+
+http_archive(
+    name = "glib",
+    integrity = "sha256-QQlm23EmONx0kFTAo8MIdUXVEGZDE5wlgGOZpRqNSrE=",
+    patch_args = [
+        "-p1",
+        "-u",
+    ],
+    patches = [
+        "//third_party/glib/patches:bazel_cc_fix.patch",
+        "//third_party/glib/patches:bazel_support.patch",
+    ],
+    strip_prefix = "glib-" + GLIB_VERSION,
+    # We cannot use the actual release tarball as it contains files generated incorrectly for our environment
+    urls = ["https://gitlab.gnome.org/GNOME/glib/-/archive/%s/glib-%s.tar.gz" % (GLIB_VERSION, GLIB_VERSION)],
+)
+
+QEMU_VERSION = "5.2.0"
+
+http_archive(
+    name = "qemu",
+    integrity = "sha256-yxjYibYo++Y3ZysDJnidmw47gCfgRFuTZTfHhUnfF7w=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/qemu/patches:fix_code_issues.patch",
+        "//third_party/qemu/patches:bazel_support.patch",
+        "//third_party/qemu/patches:pregenerated_config_files.patch",
+        "//third_party/qemu/patches:headers_fix.patch",
+        "//third_party/qemu/patches:linux-headers-update.patch",
+        "//third_party/qemu/patches:standard-headers-removal.patch",
+    ],
+    strip_prefix = "qemu-" + QEMU_VERSION,
+    urls = ["https://download.qemu.org/qemu-%s.tar.xz" % QEMU_VERSION],
+)
+
+# ONCHANGE(//third_party/chrony:chrony.bzl): version needs to be kept in sync
+CHRONY_VERSION = "4.1"
+
+http_archive(
+    name = "chrony",
+    build_file = "//third_party/chrony:chrony.bzl",
+    integrity = "sha256-7Xby0/k0esYiGpGtS9VT3QVlrBiM10kNCAHQj3FxFkw=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/chrony/patches:disable_defaults.patch",
+        "//third_party/chrony/patches:support_fixed_uids.patch",
+    ],
+    strip_prefix = "chrony-" + CHRONY_VERSION,
+    urls = ["https://download.tuxfamily.org/chrony/chrony-%s.tar.gz" % CHRONY_VERSION],
+)
+
+CAP_VERSION = "1.2.55"
+
+http_archive(
+    name = "cap",
+    build_file = "//third_party/cap:cap.bzl",
+    integrity = "sha256-4pMiAy6pTpBpauLRdTDtyRTHF2UjLuj9T944umOcslY=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/cap/patches:add_go_codegen.patch",
+    ],
+    strip_prefix = "libcap-cap/v%s/libcap" % CAP_VERSION,
+    urls = ["https://git.kernel.org/pub/scm/libs/libcap/libcap.git/snapshot/libcap-cap/v%s.tar.gz" % CAP_VERSION],
+)
+
+GNUEFI_VERSION = "3.0.14"
+
+http_archive(
+    name = "gnuefi",
+    build_file = "//third_party/gnuefi:gnuefi.bzl",
+    integrity = "sha256-V4XneCX+xeZm5MINeqqa9M2VI1GywJWTlydE/oQ2+Vc=",
+    strip_prefix = "gnu-efi-%s" % GNUEFI_VERSION,
+    urls = ["https://github.com/ncroxon/gnu-efi/archive/refs/tags/%s.tar.gz" % GNUEFI_VERSION],
+)
+
+# Developed in the systemd monorepo, pinned to master as there have been a bunch of critical fixes for the
+# EFI stub since 249.
+EFISTUB_VERSION = "3542da2442d8b29661b47c42ad7e5fa9bc8562ec"
+
+http_archive(
+    name = "efistub",
+    build_file = "//third_party/efistub:efistub.bzl",
+    integrity = "sha256-AhwTW+45ynNG0fCZI758BEo9NYZv9BGnyWJnAv9MlSM=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/efistub/patches:use-sysv-for-kernel.patch",
+        "//third_party/efistub/patches:remove-wrong-cmdline-assertion.patch",
+        "//third_party/efistub/patches:ab-slot-handling.patch",
+    ],
+    strip_prefix = "systemd-%s" % EFISTUB_VERSION,
+    urls = ["https://github.com/systemd/systemd/archive/%s.zip" % EFISTUB_VERSION],
+)
+
+LIBPG_QUERY_VERSION = "15-4.2.3"
+
+http_archive(
+    name = "libpg_query",
+    build_file = "//third_party/libpg_query/external:BUILD.repo",
+    integrity = "sha256-i4INY0QrFnfOTw3yqVs/r9vFIKgpAd74EhdVnsTfnms=",
+    strip_prefix = "libpg_query-" + LIBPG_QUERY_VERSION,
+    urls = ["https://github.com/pganalyze/libpg_query/archive/refs/tags/%s.tar.gz" % LIBPG_QUERY_VERSION],
+)
+
+DOSFSTOOLS_VERSION = "c888797b1d84ffbb949f147e3116e8bfb2e145a7"
+
+http_archive(
+    name = "com_github_dosfstools_dosfstools",
+    build_file = "//third_party/dosfstools:dosfstools.bzl",
+    integrity = "sha256-SkC0iMDCWcEftUeD/G8B5e6RJYK7SdM9DRGxH4WkLo0=",
+    strip_prefix = "dosfstools-" + DOSFSTOOLS_VERSION,
+    urls = ["https://github.com/dosfstools/dosfstools/archive/%s.zip" % DOSFSTOOLS_VERSION],
+)
+
+# master at 2024/01/09 (0.10.0 prerelease).
+LIBTPMS_VERSION = "93a827aeccd3ab2178281571b1545dcfffa2991b"
+
+http_archive(
+    name = "libtpms",
+    integrity = "sha256-5QnguhCfd9pRe15YqfCTvrBAUl5r5R3gbRFTyCeMcNE=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/libtpms/patches:0001-boringssl-compat-new-SHA-types.patch",
+        "//third_party/libtpms/patches:0002-boringssl-compat-removed-const_DES_cblock.patch",
+        "//third_party/libtpms/patches:0003-boringssl-compat-removed-EC_POINTs_mul.patch",
+        "//third_party/libtpms/patches:0004-boringssl-compat-removed-camellia-support.patch",
+        "//third_party/libtpms/patches:0005-boringssl-compat-remove-constant-time-flags-UNSAFE.patch",
+        "//third_party/libtpms/patches:0006-bazel-support-implement.patch",
+    ],
+    strip_prefix = "libtpms-" + LIBTPMS_VERSION,
+    urls = ["https://github.com/stefanberger/libtpms/archive/%s.tar.gz" % LIBTPMS_VERSION],
+)
+
+# master at 2024/06/04
+SWTPM_VERSION = "0c9a6c4a12a63b86ab472e69e95bd75853d4fa96"
+
+http_archive(
+    name = "swtpm",
+    integrity = "sha256-Fp3bE5WX+oCOES1FJFdEXHntUhuzT5mQZtIN6SFAVs4=",
+    patch_args = ["-p1"],
+    patches = [
+        "//third_party/swtpm/patches:0001-bazel-compat-glib.h-glib-glib.h.patch",
+        "//third_party/swtpm/patches:0002-swtpm_localca-replace-gmp-mpz-dependency-with-boring.patch",
+        "//third_party/swtpm/patches:0003-swtpm_setup-replace-dep-on-JSON-GLib-with-sheredom-j.patch",
+        "//third_party/swtpm/patches:0004-bazel-support-implement.patch",
+    ],
+    strip_prefix = "swtpm-" + SWTPM_VERSION,
+    urls = ["https://github.com/stefanberger/swtpm/archive/%s.tar.gz" % SWTPM_VERSION],
+)
diff --git a/build/toolchain/musl-host-gcc/BUILD.bazel b/build/toolchain/musl-host-gcc/BUILD.bazel
index 5b83901b..94f2953b 100644
--- a/build/toolchain/musl-host-gcc/BUILD.bazel
+++ b/build/toolchain/musl-host-gcc/BUILD.bazel
@@ -29,7 +29,7 @@ host_cc_toolchain_config(
     has_cpp = False,
     host_includes = [],
     is_glibc = False,
-    sysroot = "external/musl_sysroot",
+    sysroot = "external/_main~_repo_rules~musl_sysroot",
 )
 
 filegroup(
diff --git a/third_party/cap/external.bzl b/third_party/cap/external.bzl
deleted file mode 100644
index 075851b8..00000000
--- a/third_party/cap/external.bzl
+++ /dev/null
@@ -1,34 +0,0 @@
-#  Copyright 2021 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def cap_external(name, version):
-    sums = {
-        "1.2.55": "e29322032ea94e90696ae2d17530edc914c71765232ee8fd4fde38ba639cb256",
-    }
-
-    http_archive(
-        name = name,
-        sha256 = sums[version],
-        build_file = "@//third_party/cap:cap.bzl",
-        strip_prefix = "libcap-cap/v%s/libcap" % version,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/cap/patches:add_go_codegen.patch",
-        ],
-        urls = ["https://git.kernel.org/pub/scm/libs/libcap/libcap.git/snapshot/libcap-cap/v%s.tar.gz" % version],
-    )
diff --git a/third_party/chrony/chrony.bzl b/third_party/chrony/chrony.bzl
index 82b39aa0..bb1477cc 100644
--- a/third_party/chrony/chrony.bzl
+++ b/third_party/chrony/chrony.bzl
@@ -5,7 +5,7 @@ template_file(
     name = "config.h",
     src = "@@//third_party/chrony:config.h.in",
     substitutions = {
-        # ONCHANGE(//third_party/chrony:external.bzl): version needs to be kept in sync
+        # ONCHANGE(//build/bazel:third_party.MODULE.bazel): version needs to be kept in sync
         "%CHRONY_VERSION%": "4.1-monogon",
     },
 )
diff --git a/third_party/chrony/external.bzl b/third_party/chrony/external.bzl
deleted file mode 100644
index f28a4271..00000000
--- a/third_party/chrony/external.bzl
+++ /dev/null
@@ -1,34 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def chrony_external(name):
-    # ONCHANGE(//third_party/chrony:chrony.bzl): version needs to be kept in sync
-    version = "4.1"
-
-    http_archive(
-        name = name,
-        sha256 = "ed76f2d3f9347ac6221a91ad4bd553dd0565ac188cd7490d0801d08f7171164c",
-        build_file = "@//third_party/chrony:chrony.bzl",
-        strip_prefix = "chrony-" + version,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/chrony/patches:disable_defaults.patch",
-            "//third_party/chrony/patches:support_fixed_uids.patch",
-        ],
-        urls = ["https://download.tuxfamily.org/chrony/chrony-%s.tar.gz" % version],
-    )
diff --git a/third_party/cockroach/BUILD.bazel b/third_party/cockroach/BUILD.bazel
new file mode 100644
index 00000000..e69de29b
diff --git a/third_party/cockroach/BUILD.repo b/third_party/cockroach/BUILD.repo
new file mode 100644
index 00000000..e9ec3f72
--- /dev/null
+++ b/third_party/cockroach/BUILD.repo
@@ -0,0 +1,3 @@
+exports_files([
+    "cockroach"
+])
\ No newline at end of file
diff --git a/third_party/dosfstools/dosfstools.bzl b/third_party/dosfstools/dosfstools.bzl
index b1984ee0..cfe4b285 100644
--- a/third_party/dosfstools/dosfstools.bzl
+++ b/third_party/dosfstools/dosfstools.bzl
@@ -35,7 +35,7 @@ template_file(
     name = "version.h",
     src = "src/version.h.in",
     substitutions = {
-        # ONCHANGE(//third_party/dosfstools:external.bzl): version needs to be kept in sync
+        # ONCHANGE(//build/bazel:third_party.MODULE.bazel): version needs to be kept in sync
         "@PACKAGE_VERSION@": "unstable-2022-07-25",
         "@RELEASE_DATE@": "2022-07-25",
     },
diff --git a/third_party/dosfstools/external.bzl b/third_party/dosfstools/external.bzl
deleted file mode 100644
index 459f725f..00000000
--- a/third_party/dosfstools/external.bzl
+++ /dev/null
@@ -1,14 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def dosfstools_external(name, version):
-    sums = {
-        "c888797b1d84ffbb949f147e3116e8bfb2e145a7": "4a40b488c0c259c11fb54783fc6f01e5ee912582bb49d33d0d11b11f85a42e8d",
-    }
-
-    http_archive(
-        name = name,
-        sha256 = sums[version],
-        strip_prefix = "dosfstools-" + version,
-        build_file = "@//third_party/dosfstools:dosfstools.bzl",
-        urls = ["https://github.com/dosfstools/dosfstools/archive/%s.zip" % (version)],
-    )
diff --git a/third_party/edk2/external.bzl b/third_party/edk2/external.bzl
deleted file mode 100644
index 975769cd..00000000
--- a/third_party/edk2/external.bzl
+++ /dev/null
@@ -1,29 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:git.bzl", "new_git_repository")
-
-def edk2_external(name):
-    new_git_repository(
-        name = name,
-        build_file = "//third_party/edk2/external:BUILD.repo",
-        commit = "b24306f15daa2ff8510b06702114724b33895d3c",  # stable202202
-        recursive_init_submodules = True,
-        remote = "https://github.com/tianocore/edk2",
-        shallow_since = "1645456780 +0000",
-        patches = ["//third_party/edk2/patches:disable-werror.patch", "//third_party/edk2/patches:remove-brotli-build.patch"],
-        patch_args = ["-p1"],
-    )
diff --git a/third_party/edk2/external/BUILD.repo b/third_party/edk2/external/BUILD.repo
index 9faa9305..acb27b83 100644
--- a/third_party/edk2/external/BUILD.repo
+++ b/third_party/edk2/external/BUILD.repo
@@ -16,13 +16,13 @@ genrule(
         # The edk2 build does not like Bazel's default genrule environment.
         set +u
 
-        cd external/edk2
+        cd external/_main~_repo_rules~edk2
         . edksetup.sh
         make -C BaseTools/Source/C
         build -DTPM2_ENABLE -DSECURE_BOOT_ENABLE -t GCC5 -a X64 -b RELEASE -p $$PWD/OvmfPkg/OvmfPkgX64.dsc
     ) > /dev/null
 
-    cp external/edk2/Build/OvmfX64/RELEASE_GCC5/FV/{OVMF_CODE.fd,OVMF_VARS.fd} $(RULEDIR)
+    cp external/_main~_repo_rules~edk2/Build/OvmfX64/RELEASE_GCC5/FV/{OVMF_CODE.fd,OVMF_VARS.fd} $(RULEDIR)
     """,
     visibility = ["//visibility:public"],
 )
diff --git a/third_party/efistub/external.bzl b/third_party/efistub/external.bzl
deleted file mode 100644
index ababb53b..00000000
--- a/third_party/efistub/external.bzl
+++ /dev/null
@@ -1,20 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def efistub_external(name, version):
-    sums = {
-        "3542da2442d8b29661b47c42ad7e5fa9bc8562ec": "021c135bee39ca7346d1f09923be7c044a3d35866ff411a7c9626702ff4c9523",
-    }
-
-    http_archive(
-        name = name,
-        build_file = "@//third_party/efistub:efistub.bzl",
-        sha256 = sums[version],
-        strip_prefix = "systemd-%s" % version,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/efistub/patches:use-sysv-for-kernel.patch",
-            "//third_party/efistub/patches:remove-wrong-cmdline-assertion.patch",
-            "//third_party/efistub/patches:ab-slot-handling.patch",
-        ],
-        urls = ["https://github.com/systemd/systemd/archive/%s.zip" % version],
-    )
diff --git a/third_party/glib/external.bzl b/third_party/glib/external.bzl
deleted file mode 100644
index 0edd3f92..00000000
--- a/third_party/glib/external.bzl
+++ /dev/null
@@ -1,35 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def glib_external(name, version):
-    sums = {
-        "2.67.5": "410966db712638dc749054c0a3c3087545d5106643139c25806399a51a8d4ab1",
-    }
-
-    http_archive(
-        name = name,
-        patch_args = ["-p1", "-u"],
-        patches = [
-            "//third_party/glib/patches:bazel_cc_fix.patch",
-            "//third_party/glib/patches:bazel_support.patch",
-        ],
-        sha256 = sums[version],
-        strip_prefix = "glib-" + version,
-        # We cannot use the actual release tarball as it contains files generated incorrectly for our environment
-        urls = ["https://gitlab.gnome.org/GNOME/glib/-/archive/%s/glib-%s.tar.gz" % (version, version)],
-    )
diff --git a/third_party/gnuefi/external.bzl b/third_party/gnuefi/external.bzl
deleted file mode 100644
index 83bf66eb..00000000
--- a/third_party/gnuefi/external.bzl
+++ /dev/null
@@ -1,15 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def gnuefi_external(name, version):
-    sums = {
-        "3.0.14": "5785e77825fec5e666e4c20d7aaa9af4cd952351b2c09593972744fe8436f957",
-    }
-
-    http_archive(
-        name = name,
-        sha256 = sums[version],
-        build_file = "@//third_party/gnuefi:gnuefi.bzl",
-        strip_prefix = "gnu-efi-%s" % version,
-        urls = ["https://github.com/ncroxon/gnu-efi/archive/refs/tags/%s.tar.gz" % version],
-    )
-
diff --git a/third_party/intel_ucode/BUILD.repo b/third_party/intel_ucode/BUILD.repo
new file mode 100644
index 00000000..351b5653
--- /dev/null
+++ b/third_party/intel_ucode/BUILD.repo
@@ -0,0 +1,2 @@
+# Anything other than family 6 is not interesting to us
+filegroup(name = "fam6h", srcs = glob(["intel-ucode/06-*"]), visibility = ["//visibility:public"])
\ No newline at end of file
diff --git a/third_party/intel_ucode/external.bzl b/third_party/intel_ucode/external.bzl
deleted file mode 100644
index f94a1e99..00000000
--- a/third_party/intel_ucode/external.bzl
+++ /dev/null
@@ -1,21 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def intel_ucode_external(name, version):
-    sums = {
-        "20220207": "532527bd17f3ea6664452b536699818a3bf896e4ace689a43a73624711b7c921",
-        "20230214": "3a3cfe2c7642339af9f4c2ad69f5f367dfa4cd1f7f9fd4124dedefb7803591d4",
-        "20230808": "fe49bb719441f20335ed6004090ab38cdc374134d36d4f5d30be7ed93b820313",
-        "20231114": "cee26f311f7e2c039dd48cd30f995183bde9b98fb4c3039800e2ddaf5c090e55",
-    }
-    all_content = """
-# Anything other than family 6 is not interesting to us
-filegroup(name = "fam6h", srcs = glob(["intel-ucode/06-*"]), visibility = ["//visibility:public"])
-    """
-
-    http_archive(
-        name = name,
-        build_file_content = all_content,
-        sha256 = sums[version],
-        strip_prefix = "Intel-Linux-Processor-Microcode-Data-Files-microcode-" + version,
-        urls = ["https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/archive/refs/tags/microcode-%s.tar.gz" % version],
-    )
diff --git a/third_party/libpg_query/external.bzl b/third_party/libpg_query/external.bzl
deleted file mode 100644
index 2a22ad49..00000000
--- a/third_party/libpg_query/external.bzl
+++ /dev/null
@@ -1,13 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def libpg_query_external(name, version):
-    sums = {
-        "15-4.2.3": "8b820d63442b1677ce4f0df2a95b3fafdbc520a82901def81217559ec4df9e6b",
-    }
-    http_archive(
-        name = name,
-        build_file = "//third_party/libpg_query/external:BUILD.repo",
-        sha256 = sums[version],
-        strip_prefix = "libpg_query-" + version,
-        urls = ["https://github.com/pganalyze/libpg_query/archive/refs/tags/%s.tar.gz" % version],
-    )
diff --git a/third_party/libtpms/BUILD.bazel b/third_party/libtpms/BUILD.bazel
index e69de29b..6bbc4ebf 100644
--- a/third_party/libtpms/BUILD.bazel
+++ b/third_party/libtpms/BUILD.bazel
@@ -0,0 +1,6 @@
+# TODO: Workaround for https://github.com/bazelbuild/bazel/issues/19301
+alias(
+    name = "libtpms_tpm2",
+    actual = "@libtpms//:libtpms_tpm2",
+    visibility = ["//visibility:public"],
+)
diff --git a/third_party/libtpms/external.bzl b/third_party/libtpms/external.bzl
deleted file mode 100644
index d6052b42..00000000
--- a/third_party/libtpms/external.bzl
+++ /dev/null
@@ -1,23 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def libtpms_external(name, version):
-    sums = {
-        # master at 2024/01/09 (0.10.0 prerelease).
-        "93a827aeccd3ab2178281571b1545dcfffa2991b": "e509e0ba109f77da517b5e58a9f093beb040525e6be51de06d1153c8278c70d1",
-    }
-
-    http_archive(
-        name = name,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/libtpms/patches:0001-boringssl-compat-new-SHA-types.patch",
-            "//third_party/libtpms/patches:0002-boringssl-compat-removed-const_DES_cblock.patch",
-            "//third_party/libtpms/patches:0003-boringssl-compat-removed-EC_POINTs_mul.patch",
-            "//third_party/libtpms/patches:0004-boringssl-compat-removed-camellia-support.patch",
-            "//third_party/libtpms/patches:0005-boringssl-compat-remove-constant-time-flags-UNSAFE.patch",
-            "//third_party/libtpms/patches:0006-bazel-support-implement.patch",
-        ],
-        sha256 = sums[version],
-        strip_prefix = "libtpms-" + version,
-        urls = ["https://github.com/stefanberger/libtpms/archive/%s.tar.gz" % version],
-    )
diff --git a/third_party/libtpms/patches/0006-bazel-support-implement.patch b/third_party/libtpms/patches/0006-bazel-support-implement.patch
index 8152a55f..ed540b1f 100644
--- a/third_party/libtpms/patches/0006-bazel-support-implement.patch
+++ b/third_party/libtpms/patches/0006-bazel-support-implement.patch
@@ -26,11 +26,11 @@ index 0000000..591942d
 +        "include",
 +    ],
 +    copts = [
-+        "-Iexternal/libtpms/include/libtpms",
-+        "-Iexternal/libtpms/src",
-+        "-Iexternal/libtpms/src/tpm2",
-+        "-Iexternal/libtpms/src/tpm2/crypto",
-+        "-Iexternal/libtpms/src/tpm2/crypto/openssl",
++        "-Iexternal/_main~_repo_rules~libtpms/include/libtpms",
++        "-Iexternal/_main~_repo_rules~libtpms/src",
++        "-Iexternal/_main~_repo_rules~libtpms/src/tpm2",
++        "-Iexternal/_main~_repo_rules~libtpms/src/tpm2/crypto",
++        "-Iexternal/_main~_repo_rules~libtpms/src/tpm2/crypto/openssl",
 +    ],
 +    defines = [
 +        "TPM_LIBTPMS_CALLBACKS",
diff --git a/third_party/linux-firmware/BUILD.repo b/third_party/linux-firmware/BUILD.repo
new file mode 100644
index 00000000..a6ba2239
--- /dev/null
+++ b/third_party/linux-firmware/BUILD.repo
@@ -0,0 +1,3 @@
+filegroup(name = "all_files", srcs = glob(["**"]), visibility = ["//visibility:public"])
+filegroup(name = "metadata", srcs = ["WHENCE"], visibility = ["//visibility:public"])
+filegroup(name = "amd_ucode", srcs = glob(["amd-ucode/*.bin"]), visibility = ["//visibility:public"])
\ No newline at end of file
diff --git a/third_party/linux-firmware/external.bzl b/third_party/linux-firmware/external.bzl
deleted file mode 100644
index 50faa361..00000000
--- a/third_party/linux-firmware/external.bzl
+++ /dev/null
@@ -1,28 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def linux_firmware_external(name, version):
-    sums = {
-        "20211216": "c0f735dd232c22d41ce4d23a050a8d6efe3b6b8cbf9d0a636af5f9df66a619a3",
-        "20230310": "14c472af10f9b566c4f575aeb30d8a274d54b1660007e7426b7e4ea21dff81aa",
-        # 2023-07-25 master for Zenbleed (CVE-2023-20593)
-        "b6ea35ff6b9869470a0c68813f1668acb3d356a8": "67e58b74fb0eebb17fdf95c58a24c6244f93bb0ae8e880f1814ad80463f3a935",
-        # 2023-08-09 master for Inception (CVE-2023-20569) and
-        # Phantom (CVE-2022-23825)
-        "f2eb058afc57348cde66852272d6bf11da1eef8f": "fcd570b8b259049dd84a0326f17a313271962f806ca32dbd9e40cdd9079857d0",
-        "20230919": "1dac602218f83f2c81dd72e599ae6c926901b3d36babccce46cd84293a37e473",
-        "20231211": "d0ba54f05f5dd34b0fc5a1e1970cd9cbc48491d2da97f3798a9e13530dc18298",
-        "20240513": "b7224364e1fd7ee6b803f861747f9ccde7c2030af939fdc1eeea083ea85ce51c",
-    }
-    all_content = """
-filegroup(name = "all_files", srcs = glob(["**"]), visibility = ["//visibility:public"])
-filegroup(name = "metadata", srcs = ["WHENCE"], visibility = ["//visibility:public"])
-filegroup(name = "amd_ucode", srcs = glob(["amd-ucode/*.bin"]), visibility = ["//visibility:public"])
-    """
-
-    http_archive(
-        name = name,
-        build_file_content = all_content,
-        sha256 = sums[version],
-        strip_prefix = "linux-firmware-" + version,
-        urls = ["https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/snapshot/linux-firmware-%s.tar.gz" % version],
-    )
diff --git a/third_party/linux/external.bzl b/third_party/linux/external.bzl
deleted file mode 100644
index 548d192b..00000000
--- a/third_party/linux/external.bzl
+++ /dev/null
@@ -1,38 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def linux_external(name, version):
-    sums = {
-        "6.6.13": "88b89e7dd41ead4e3ab1e411c8bb8d592575acf815cf1df3c0dc57e2e882c0bc",
-        "6.6.30": "b66a5b863b0f8669448b74ca83bd641a856f164b29956e539bbcb5fdeeab9cc6",
-        "6.6.42": "8801c8c297d774e76044977ec3d0684399dc4e7cce347d730874ec78b774e683",
-    }
-    http_archive(
-        name = name,
-        build_file = "//third_party/linux/external:BUILD.repo",
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/linux/external:0001-block-partition-expose-PARTUUID-through-uevent.patch",
-            "//third_party/linux/external:disable-static-ifs.patch",
-            "//third_party/linux/external:enable-pmsg.patch",
-            "//third_party/linux/external:lacp_fix.patch",
-        ],
-        sha256 = sums[version],
-        strip_prefix = "linux-" + version,
-        urls = ["https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-%s.tar.xz" % version],
-    )
diff --git a/third_party/musl/BUILD.bazel b/third_party/musl/BUILD.bazel
index afd1212d..91d73989 100644
--- a/third_party/musl/BUILD.bazel
+++ b/third_party/musl/BUILD.bazel
@@ -27,7 +27,7 @@ genrule(
     cmd = """
     OUT=$$PWD/$(RULEDIR)
     (
-        cd external/musl
+        cd external/_main~_repo_rules~musl
         ./configure --prefix=$$OUT --syslibdir=$$OUT --libdir=$$OUT
         make -j $$(nproc) install-libs
     ) > /dev/null
diff --git a/third_party/musl/BUILD.repo b/third_party/musl/BUILD.repo
new file mode 100644
index 00000000..0f930c5b
--- /dev/null
+++ b/third_party/musl/BUILD.repo
@@ -0,0 +1 @@
+filegroup(name = "all", srcs = glob(["**"]), visibility = ["//visibility:public"])
\ No newline at end of file
diff --git a/third_party/musl/external.bzl b/third_party/musl/external.bzl
deleted file mode 100644
index b9b4f838..00000000
--- a/third_party/musl/external.bzl
+++ /dev/null
@@ -1,32 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def musl_external(name, version):
-    sums = {
-        "1.1.24": "1370c9a812b2cf2a7d92802510cca0058cc37e66a7bedd70051f0a34015022a3"
-    }
-    all_content = """filegroup(name = "all", srcs = glob(["**"]), visibility = ["//visibility:public"])"""
-
-    http_archive(
-        name = name,
-        build_file_content = all_content,
-        sha256 = sums[version],
-        strip_prefix = "musl-" + version,
-        urls = ["https://www.musl-libc.org/releases/musl-%s.tar.gz" % version],
-    )
-
diff --git a/third_party/pixman/external.bzl b/third_party/pixman/external.bzl
deleted file mode 100644
index b64660c7..00000000
--- a/third_party/pixman/external.bzl
+++ /dev/null
@@ -1,30 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def pixman_external(name, version):
-    sums = {
-        "0.40.0": "6d200dec3740d9ec4ec8d1180e25779c00bc749f94278c8b9021f5534db223fc",
-    }
-
-    http_archive(
-        name = name,
-        sha256 = sums[version],
-        build_file = "@//third_party/pixman:pixman.bzl",
-        strip_prefix = "pixman-" + version + "/pixman",
-        urls = ["https://www.cairographics.org/releases/pixman-%s.tar.gz" % version],
-    )
diff --git a/third_party/qemu/external.bzl b/third_party/qemu/external.bzl
deleted file mode 100644
index cae80dac..00000000
--- a/third_party/qemu/external.bzl
+++ /dev/null
@@ -1,38 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def qemu_external(name, version):
-    sums = {
-        "5.2.0": "cb18d889b628fbe637672b0326789d9b0e3b8027e0445b936537c78549df17bc",
-    }
-
-    http_archive(
-        name = name,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/qemu/patches:fix_code_issues.patch",
-            "//third_party/qemu/patches:bazel_support.patch",
-            "//third_party/qemu/patches:pregenerated_config_files.patch",
-            "//third_party/qemu/patches:headers_fix.patch",
-            "//third_party/qemu/patches:linux-headers-update.patch",
-            "//third_party/qemu/patches:standard-headers-removal.patch",
-        ],
-        sha256 = sums[version],
-        strip_prefix = "qemu-" + version,
-        urls = ["https://download.qemu.org/qemu-%s.tar.xz" % version],
-    )
diff --git a/third_party/qemu/patches/bazel_support.patch b/third_party/qemu/patches/bazel_support.patch
index 00c1ff28..2b2c66a7 100644
--- a/third_party/qemu/patches/bazel_support.patch
+++ b/third_party/qemu/patches/bazel_support.patch
@@ -1684,7 +1684,7 @@ index 0000000000..70ce080a62
 +def _impl_cc_qemu_trace(ctx):
 +    outs = []
 +    for src in ctx.files.srcs:
-+        name = src.path.replace("external/qemu/", "").replace("/trace-events", "").replace("/", "_")
++        name = src.path.replace("external/_main~_repo_rules~qemu/", "").replace("/trace-events", "").replace("/", "_")
 +        if name == "trace-events":
 +            name = "root"
 +        trace_h = ctx.actions.declare_file("trace-{}.h".format(name))
diff --git a/third_party/qemu/patches/pregenerated_config_files.patch b/third_party/qemu/patches/pregenerated_config_files.patch
index ced72f58..8facc613 100644
--- a/third_party/qemu/patches/pregenerated_config_files.patch
+++ b/third_party/qemu/patches/pregenerated_config_files.patch
@@ -198,7 +198,7 @@ index 0000000000..843e9c8116
 +
 +#define CONFIG_QEMU_DESKTOPDIR "/nonexistent"
 +
-+#define CONFIG_QEMU_FIRMWAREPATH "external/qemu/pc-bios"
++#define CONFIG_QEMU_FIRMWAREPATH "external/_main~_repo_rules~qemu/pc-bios"
 +
 +#define CONFIG_QEMU_HELPERDIR "/nonexistent"
 +
diff --git a/third_party/seccomp/external.bzl b/third_party/seccomp/external.bzl
deleted file mode 100644
index 7f558c69..00000000
--- a/third_party/seccomp/external.bzl
+++ /dev/null
@@ -1,38 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def seccomp_external(name, version):
-    # NOTE: Remember to update seccomp.bzl's seccomp.h template rule
-    # with the correct version.
-    sums = {
-        "2.5.1": "76ad54e31d143b39a99083564045212a965e026a1010a742edd793d26d699829",
-    }
-
-    http_archive(
-        name = name,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/seccomp/patches:bazel_cc_fix.patch",
-            "//third_party/seccomp/patches:fix_generated_includes.patch",
-        ],
-        sha256 = sums[version],
-        build_file = "@//third_party/seccomp:seccomp.bzl",
-        strip_prefix = "libseccomp-" + version,
-        # We cannot use the actual release tarball as it contains files generated incorrectly for our environment
-        urls = ["https://github.com/seccomp/libseccomp/archive/v%s.tar.gz" % version],
-    )
diff --git a/third_party/swtpm/external.bzl b/third_party/swtpm/external.bzl
deleted file mode 100644
index 903bb332..00000000
--- a/third_party/swtpm/external.bzl
+++ /dev/null
@@ -1,21 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def swtpm_external(name, version):
-    sums = {
-        # master at 2024/06/04
-        "0c9a6c4a12a63b86ab472e69e95bd75853d4fa96": "169ddb139597fa808e112d452457445c79ed521bb34f999066d20de9214056ce",
-    }
-
-    http_archive(
-        name = name,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/swtpm/patches:0001-bazel-compat-glib.h-glib-glib.h.patch",
-            "//third_party/swtpm/patches:0002-swtpm_localca-replace-gmp-mpz-dependency-with-boring.patch",
-            "//third_party/swtpm/patches:0003-swtpm_setup-replace-dep-on-JSON-GLib-with-sheredom-j.patch",
-            "//third_party/swtpm/patches:0004-bazel-support-implement.patch",
-        ],
-        sha256 = sums[version],
-        strip_prefix = "swtpm-" + version,
-        urls = ["https://github.com/stefanberger/swtpm/archive/%s.tar.gz" % version],
-    )
diff --git a/third_party/swtpm/patches/0004-bazel-support-implement.patch b/third_party/swtpm/patches/0004-bazel-support-implement.patch
index 15245c64..ce699920 100644
--- a/third_party/swtpm/patches/0004-bazel-support-implement.patch
+++ b/third_party/swtpm/patches/0004-bazel-support-implement.patch
@@ -47,8 +47,8 @@ index 0000000..acddc0e
 +cc_binary(
 +    name = "swtpm",
 +    deps = [
-+        "@libtpms//:libtpms_tpm2",
-+        "@glib//glib",
++        "@@//third_party/libtpms:libtpms_tpm2",
++        "@@//third_party/glib",
 +    ],
 +    srcs = glob([
 +        "src/swtpm/*.h",
@@ -64,9 +64,9 @@ index 0000000..acddc0e
 +        "src/utils/swtpm_utils.c",
 +    ]),
 +    copts = [
-+        "-Iexternal/swtpm/include",
-+        "-Iexternal/swtpm/include/swtpm",
-+        "-Iexternal/swtpm/src/utils",
++        "-Iexternal/_main~_repo_rules~swtpm/include",
++        "-Iexternal/_main~_repo_rules~swtpm/include/swtpm",
++        "-Iexternal/_main~_repo_rules~swtpm/src/utils",
 +    ],
 +    visibility = [
 +        "//visibility:public",
@@ -76,8 +76,8 @@ index 0000000..acddc0e
 +cc_binary(
 +    name = "swtpm_localca",
 +    deps = [
-+        "@libtpms//:libtpms_tpm2",
-+        "@glib//glib",
++        "@@//third_party/libtpms:libtpms_tpm2",
++        "@@//third_party/glib",
 +    ],
 +    srcs = glob([
 +        "src/swtpm_localca/*.h",
@@ -88,9 +88,9 @@ index 0000000..acddc0e
 +        "src/utils/*.c",
 +    ], []),
 +    copts = [
-+        "-Iexternal/swtpm/include",
-+        "-Iexternal/swtpm/include/swtpm",
-+        "-Iexternal/swtpm/src/utils",
++        "-Iexternal/_main~_repo_rules~swtpm/include",
++        "-Iexternal/_main~_repo_rules~swtpm/include/swtpm",
++        "-Iexternal/_main~_repo_rules~swtpm/src/utils",
 +    ],
 +    visibility = [
 +        "//visibility:public",
@@ -100,8 +100,8 @@ index 0000000..acddc0e
 +cc_binary(
 +    name = "swtpm_setup",
 +    deps = [
-+        "@libtpms//:libtpms_tpm2",
-+        "@glib//glib",
++        "@@//third_party/libtpms:libtpms_tpm2",
++        "@@//third_party/glib",
 +    ],
 +    srcs = glob([
 +        "src/swtpm_setup/*.h",
@@ -112,9 +112,9 @@ index 0000000..acddc0e
 +        "src/utils/*.c",
 +    ], []),
 +    copts = [
-+        "-Iexternal/swtpm/include",
-+        "-Iexternal/swtpm/include/swtpm",
-+        "-Iexternal/swtpm/src/utils",
++        "-Iexternal/_main~_repo_rules~swtpm/include",
++        "-Iexternal/_main~_repo_rules~swtpm/include/swtpm",
++        "-Iexternal/_main~_repo_rules~swtpm/src/utils",
 +    ],
 +    visibility = [
 +        "//visibility:public",
@@ -132,7 +132,7 @@ index 0000000..acddc0e
 +        "include/*.h",
 +    ], []),
 +    copts = [
-+        "-Iexternal/swtpm/include",
++        "-Iexternal/_main~_repo_rules~swtpm/include",
 +    ],
 +    visibility = [
 +        "//visibility:public",
diff --git a/third_party/urcu/external.bzl b/third_party/urcu/external.bzl
deleted file mode 100644
index df78388c..00000000
--- a/third_party/urcu/external.bzl
+++ /dev/null
@@ -1,16 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def urcu_external(name, version):
-    sums = {
-        "0.14.0": "sha256-QvtRKaP//lpLeQ3+HqOnNMae4JX++/ZJMmJpu6lMJi0=",
-    }
-
-    http_archive(
-        name = name,
-        integrity = sums[version],
-        strip_prefix = "userspace-rcu-" + version,
-        build_file = "@//third_party/urcu:urcu.bzl",
-        patch_args = ["-p1"],
-        patches = ["//third_party/urcu/patches:generated-files.patch"],
-        urls = ["https://github.com/urcu/userspace-rcu/archive/refs/tags/v%s.tar.gz" % version],
-    )
diff --git a/third_party/uring/external.bzl b/third_party/uring/external.bzl
deleted file mode 100644
index 35f99244..00000000
--- a/third_party/uring/external.bzl
+++ /dev/null
@@ -1,35 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def uring_external(name, version):
-    sums = {
-        "2.0": "ca069ecc4aa1baf1031bd772e4e97f7e26dfb6bb733d79f70159589b22ab4dc0",
-    }
-
-    http_archive(
-        name = name,
-        patch_args = ["-p1"],
-        patches = [
-            "//third_party/uring/patches:bazel_cc_fix.patch",
-            "//third_party/uring/patches:include-compat-h.patch",
-        ],
-        sha256 = sums[version],
-        build_file = "@//third_party/uring:uring.bzl",
-        strip_prefix = "liburing-liburing-" + version,
-        urls = ["https://github.com/axboe/liburing/archive/liburing-%s.tar.gz" % version],
-    )
diff --git a/third_party/util-linux/external.bzl b/third_party/util-linux/external.bzl
deleted file mode 100644
index d764b4d3..00000000
--- a/third_party/util-linux/external.bzl
+++ /dev/null
@@ -1,33 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def util_linux_external(name, version):
-    sums = {
-        "2.34": "1d0c1a38f8c14a2c251681907203cccc78704f5702f2ef4b438bed08344242f7",
-        "2.36.2": "084bc6f9bd479bfd78e8924e63f85bb17953681bf1dad240e4d8601a21294d0b",
-    }
-
-    http_archive(
-        name = name,
-        sha256 = sums[version],
-        strip_prefix = "util-linux-" + version,
-        build_file = "@//third_party/util-linux:util-linux.bzl",
-        patch_args = ["-p1"],
-        patches = ["//third_party/util-linux/patches:bazel_cc_fix.patch"],
-        urls = ["https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/snapshot/util-linux-%s.tar.gz" % version],
-    )
diff --git a/third_party/xfsprogs/external.bzl b/third_party/xfsprogs/external.bzl
deleted file mode 100644
index 2c19a604..00000000
--- a/third_party/xfsprogs/external.bzl
+++ /dev/null
@@ -1,34 +0,0 @@
-#  Copyright 2020 The Monogon Project Authors.
-#
-#  SPDX-License-Identifier: Apache-2.0
-#
-#  Licensed under the Apache License, Version 2.0 (the "License");
-#  you may not use this file except in compliance with the License.
-#  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#  See the License for the specific language governing permissions and
-#  limitations under the License.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def xfsprogs_external(name, version):
-    sums = {
-        "5.2.1": "6187f25f1744d1ecbb028b0ea210ad586d0f2dae24e258e4688c67740cc861ef",
-        "5.10.0": "e807ca9fd8f01e45c9ec8ffb3c123bdb7dfcfd8e05340520d2ff1ddbc3bd7c88",
-        "6.9.0": "fe7206968bbd8177754ba732f639f851b69c8f70ac5f96bb0e182d88664140bf",
-    }
-
-    http_archive(
-        name = name,
-        patch_args = ["-p1"],
-        patches = ["//third_party/xfsprogs/patches:bazel_cc_fix.patch"],
-        sha256 = sums[version],
-        build_file = "@//third_party/xfsprogs:xfsprogs.bzl",
-        strip_prefix = "xfsprogs-dev-" + version,
-        urls = ["https://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git/snapshot/xfsprogs-dev-%s.tar.gz" % version],
-    )