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1. ImageAlpha ImageAlpha Public

   Lossy PNG compression for macOS: shrink PNGs, transparency included, with libimagequant and a live before-and-after preview

   Swift 2

2. AudiobookForge AudiobookForge Public

   A modern macOS app that combines MP3 files into a single chaptered .m4b audiobook — with real metadata lookup, embedded cover art, and a background encode queue.

   Swift

3. PaperDrop PaperDrop Public

   Tiny native macOS scanner app that turns paper into searchable, archival PDFs — one big button, ~20 KB per page

   Swift 1

4. PaperPress PaperPress Public

   Batch re-compress scanned PDF archives to tiny, searchable, archival PDFs — native macOS

   Swift

5. screensavers screensavers Public

   Native macOS screensavers — a live solar system, the three-body problem, a light tunnel and a Kerr black hole. One build, signing and release pipeline.

   Swift 1

6. FilenameChanger FilenameChanger Public

   Native macOS batch file renamer: chain up to five rename steps, preview every new name before anything moves, undo with ⌘Z, and name documents from their contents with on-device Apple Intelligence

   Swift