diff --git a/.flake8 b/.flake8
deleted file mode 100644
index df547cab6..000000000
--- a/.flake8
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Copyright 2021, Breakaway Consulting Pty. Ltd.
-#
-# SPDX-License-Identifier: BSD-2-Clause
-#
-[flake8]
-ignore = E501
diff --git a/DEVELOPER.md b/DEVELOPER.md
index fb57c15b6..76bd00a01 100644
--- a/DEVELOPER.md
+++ b/DEVELOPER.md
@@ -49,7 +49,7 @@ On a Debian-like system you can do:
     $ rustup component add rust-src --toolchain stable-x86_64-unknown-linux-gnu
     $ python3.12 -m venv pyenv
     $ ./pyenv/bin/pip install --upgrade pip setuptools wheel
-    $ ./pyenv/bin/pip install -r requirements.txt
+    $ ./pyenv/bin/pip install --upgrade sel4-deps
 
 If you do not have Python 3.12 available, you can get it via the
 *deadsnakes* PPA: https://launchpad.net/~deadsnakes/+archive/ubuntu/ppa
diff --git a/ci/install_ubuntu_deps.sh b/ci/install_ubuntu_deps.sh
index 1727f6fb9..fac031906 100755
--- a/ci/install_ubuntu_deps.sh
+++ b/ci/install_ubuntu_deps.sh
@@ -34,4 +34,4 @@ sudo apt-get install -qq \
 
 python3.12 -m venv pyenv
 ./pyenv/bin/pip install --upgrade pip setuptools wheel
-./pyenv/bin/pip install -r requirements.txt
+./pyenv/bin/pip install --upgrade sel4-deps
diff --git a/flake.nix b/flake.nix
index 2ad0102f0..2cd3db887 100644
--- a/flake.nix
+++ b/flake.nix
@@ -38,10 +38,8 @@
         );
 
         python = pkgs.python312;
+        # sel4-deps
         pythonPackages = python.withPackages (ps: [
-          ps.mypy
-          ps.black
-          ps.flake8
           ps.ply
           ps.jinja2
           ps.pyaml
diff --git a/mypy.ini b/mypy.ini
deleted file mode 100644
index 6d4b7d715..000000000
--- a/mypy.ini
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# Copyright 2021, Breakaway Consulting Pty. Ltd.
-#
-# SPDX-License-Identifier: BSD-2-Clause
-#
-[mypy]
-warn_unused_configs = True
-disallow_any_unimported = True
-disallow_any_expr = False
-disallow_any_decorated = True
-disallow_any_explicit = True
-disallow_any_generics = True
-disallow_subclassing_any = True
-disallow_untyped_calls = True
-disallow_untyped_defs = True
-disallow_incomplete_defs = True
-disallow_untyped_decorators = True
-no_implicit_optional = True
-warn_redundant_casts = True
-warn_unused_ignores = True
-warn_return_any = True
-warn_unreachable = True
-strict_equality = True
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index a3631824e..000000000
--- a/requirements.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Copyright 2021, Breakaway Consulting Pty. Ltd.
-#
-# SPDX-License-Identifier: BSD-2-Clause
-#
-mypy==0.910
-black==21.7b0
-flake8==3.9.2
-ply==3.11
-Jinja2==3.0.3
-PyYAML==6.0.2
-pyfdt==0.3
-lxml==5.2.1