A Link to the Past v0.6.0 — adaptive widescreen as a mod, SDL3, first Linux build

What's new

Adaptive widescreen is now a mod, and there is a Linux build.

• Widescreen moved from Display settings to the Mods page (matching Mega Man
  X / X2 / Super Mario World). It is a single default-off toggle named
  Widescreen (adaptive) — ALttP has no fixed 16:9 mode: the view widens to
  match your window at a fixed 224-line height, so a 4:3 window renders authentic
  and wider windows reveal more of the room.
• First Linux AppImage for A Link to the Past. State — config.ini,
  keybinds.ini, rom.cfg, saves/, mods/ — lives next to the
  .AppImage, survives updates, and re-anchors if you move the file. Drop your
  ROM beside the .AppImage and it is picked up automatically.
• Ported to SDL3 (SDL2 still available for local builds).
• Fixed adaptive widescreen being pinned to 4:3: the renderer was reporting its
  own logical size instead of the real window, so it always computed zero extra
  columns.
• Windows archive now uses portable ZIP paths, so Linux and Steam Deck extractors
  rebuild the bundled assets/ and mods/packages/ hierarchy correctly.
• Crash reports now carry the release version instead of dev.
• Production builds no longer announce a TCP debug server they do not have.

Notes

• A verified A Link to the Past (USA) ROM is required and is not included.
  Both the stock ROM and a qwertymodo MSU-1-patched image are accepted.
• Windows: extract the full archive, then run ZeldaALttPSNESRecomp.exe.
• Linux: chmod +x the .AppImage and run it from a writable folder.