The release build type reuses the debug signing config, so a downloaded APK
installs over an existing one instead of demanding an uninstall. This never
goes to Play, which rejects debug keys anyway, so there is no private key
worth safeguarding for years and no way to strand anyone on a version that
can no longer be updated.
That choice is load-bearing in one direction: a release build is not
DEBUGGABLE, so adb shell run-as stops reading app data back out, and there is
no in-app restore. A signature change would have cost the drill progress.
npm run release stages release/404-Layers-<version>.apk with a checksum and
verifies the signature, since an unsigned APK builds fine and only fails at
install time, on someone else's phone.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
It described the visual language rather than telling a reader anything
they need in order to build, run or understand the app. The fonts it
mentioned are still covered by public/fonts/README.md and the licence
section, so nothing is orphaned by removing it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
LICENSE is MIT, copyright Georgi Durankiev.
The README is written for a stranger: what the device hides behind
modifier combos and why that needs an app at all, what each of the four
tabs does, how the Leitner drill works, how to build and install it, and
a map of the source with the domain and UI split explained.
It also records the four things someone reading the code would otherwise
have to discover: that the combo table is generated from reference/ and
must never be typed by hand, that Entry.id and STORAGE_KEY are
load-bearing for migrating progress off the old version, that
touch-action:none and window-level pointerup are what make chorded
answers possible, and that the domain is pure specifically so it can be
tested - which is how a real bug in the weighted card pick surfaced.
Screenshots show Explore with nothing held beside the same screen
holding SHIFT: three functions becoming thirty-five, pads turning from
numerals into FIX VEL, 16 VEL, CUE and CHROMA. That pair explains the
app faster than the prose does. Captured headlessly at the phone's real
360x735, which needed the held layer temporarily patched in source and
restored afterwards.
Notes the data comes from the SP-404MK2 reference manual v5.50 and that
this is unofficial and unaffiliated with Roland, and points at the
bundled OFL font licences.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
