Build pygame from source so the pre-commit job runs newest Python too

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.github/workflows/pre-commit.yml

@@ -30,12 +30,7 @@ jobs:
 
       - uses: actions/setup-python@v5
         with:
-          # 3.12, not "3.x", and only in THIS job: it installs the full
-          # requirements.txt, which includes pygame 2.6.1 -- the newest
-          # release, and it ships no cp314 wheel. On 3.14 pip falls back to
-          # a source build and dies on a missing sdl-config. python-tests.yml
-          # runs newest stable because its test subset has no pygame.
-          python-version: "3.12"
+          python-version: "3.x"
           # See the note in python-tests.yml: caches the pip download cache,
           # keyed on the real meta/ path rather than the root symlink.
           cache: pip
@@ -48,7 +43,15 @@ jobs:
       - name: Install system dependencies
         run: |
           set -euo pipefail
-          sudo apt-get update && sudo apt-get install -y zsh librsvg2-bin
+          sudo apt-get update
+          # The SDL headers are for pygame. 2.6.1 is the newest release and its
+          # wheels stop at cp313, so on newest-stable Python pip falls back to a
+          # source build -- which dies on a missing `sdl-config` unless these are
+          # here. Every repo runs exactly one Python and it is the newest, so the
+          # build gets what it needs rather than the job being held back.
+          sudo apt-get install -y zsh librsvg2-bin \
+            libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev libsdl2-ttf-dev \
+            libfreetype6-dev libportmidi-dev
           zsh --version
           rsvg-convert --version
 

meta/pyproject.toml

@@ -2,10 +2,10 @@
 name = "testsandmisc"
 version = "0.1.0"
 description = "Collection of miscellaneous tests and scripts"
-# numpy 2.5.2 -- the pin the freshness gate requires -- declares >=3.12, so
-# 3.10 and 3.11 can no longer even install the test environment. CI proves
-# 3.14; 3.12 is the lowest version the pins allow.
-requires-python = ">=3.12"
+# One Python, always the newest (kuhy, 2026-08-28). CI runs "3.x" in every
+# job, and the full suite -- 1866 tests, 100% coverage -- was verified on
+# 3.14 in a clean venv before this floor moved.
+requires-python = ">=3.14"
 
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