diff --git a/justfile b/justfile
index bbf6f7547..d089aa340 100644
--- a/justfile
+++ b/justfile
@@ -50,21 +50,56 @@ run-test-matrix:
     done
 
 run-test-pytest:
-    python -m pytest -v --cov={{justfile_directory()}} --cov-report html tests/pytest
+    python -m pytest -v --cov={{ justfile_directory() }} --cov-report html tests/pytest
 
 run-test-bats:
     ./tests/bats/run_bats.sh
 
 gen-constants: && fmt
-    ./scripts/gen_constants.py > src/gallia/transports/_can_constants.py
+    #!/usr/bin/env python
+
+    import socket
+
+    TEMPLATE = f"""# This file has been autogenerated by `just gen-constants`.
+    # !! DO NOT CHANGE MANUALLY !!
+
+    import struct
+
+
+    CANFD_MTU = 72
+    CAN_MTU = 16
+
+    # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/can.h
+    CAN_HEADER_FMT = struct.Struct("=IBB2x")
+
+    CANFD_BRS = 0x01
+    CANFD_ESI = 0x02
+
+    CAN_EFF_FLAG = {socket.CAN_EFF_FLAG}
+    CAN_ERR_FLAG = {socket.CAN_ERR_FLAG}
+    CAN_RTR_FLAG = {socket.CAN_RTR_FLAG}
+
+    CAN_EFF_MASK = {socket.CAN_EFF_MASK}
+    CAN_INV_FILTER = 0x20000000  # TODO: Add to CPython
+    CAN_SFF_MASK = {socket.CAN_SFF_MASK}
+
+    CAN_RAW = {socket.CAN_RAW}
+    CAN_RAW_FD_FRAMES = {socket.CAN_RAW_FD_FRAMES}
+    CAN_RAW_FILTER = {socket.CAN_RAW_FILTER}
+    CAN_RAW_JOIN_FILTERS = {socket.CAN_RAW_JOIN_FILTERS}
+    SOL_CAN_RAW = {socket.SOL_CAN_RAW}
+    """
+
+    with open("src/gallia/transports/_can_constants.py", "w") as f:
+        f.write(TEMPLATE)
 
 release increment:
-    cz bump --increment {{increment}}
+    cz bump --increment {{ increment }}
     git push --follow-tags
     gh release create "v$(cz version -p)"
 
 pre-release increment premode:
-    cz bump --increment {{increment}} --prerelease {{premode}}
+    cz bump --increment {{ increment }} --prerelease {{ premode }}
     git push --follow-tags
     gh release create --prerelease "v$(cz version -p)"
 
diff --git a/scripts/gen_constants.py b/scripts/gen_constants.py
deleted file mode 100755
index 23f99cc99..000000000
--- a/scripts/gen_constants.py
+++ /dev/null
@@ -1,52 +0,0 @@
-#!/usr/bin/env python
-
-# SPDX-FileCopyrightText: AISEC Pentesting Team
-#
-# SPDX-License-Identifier: Apache-2.0
-
-import socket
-
-TEMPLATE = f"""# This file has been autogenerated by `make constants`.
-# !! DO NOT CHANGE MANUALLY !!
-
-# SPDX-FileCopyrightText: AISEC Pentesting Team
-#
-# SPDX-License-Identifier: Apache-2.0
-
-import struct
-
-
-CANFD_MTU = 72
-CAN_MTU = 16
-
-# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/can.h
-CAN_HEADER_FMT = struct.Struct("=IBB2x")
-
-CANFD_BRS = 0x01
-CANFD_ESI = 0x02
-
-CAN_EFF_FLAG = {socket.CAN_EFF_FLAG}
-CAN_ERR_FLAG = {socket.CAN_ERR_FLAG}
-CAN_RTR_FLAG = {socket.CAN_RTR_FLAG}
-
-CAN_EFF_MASK = {socket.CAN_EFF_MASK}
-CAN_INV_FILTER = 0x20000000  # TODO: Add to CPython
-CAN_SFF_MASK = {socket.CAN_SFF_MASK}
-
-CAN_RAW = {socket.CAN_RAW}
-CAN_RAW_FD_FRAMES = {socket.CAN_RAW_FD_FRAMES}
-CAN_RAW_FILTER = {socket.CAN_RAW_FILTER}
-CAN_RAW_JOIN_FILTERS = {socket.CAN_RAW_JOIN_FILTERS}
-SOL_CAN_RAW = {socket.SOL_CAN_RAW}
-"""
-
-
-def main() -> None:
-    print(TEMPLATE)
-
-
-if __name__ == "__main__":
-    try:
-        main()
-    except KeyboardInterrupt:
-        pass