Add Hatter vs miso-lynx technical comparison#220
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jappeace merged 2 commits intoMay 15, 2026
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Compares architecture, device API access, and UI layer between the two native Haskell mobile frameworks. Includes detailed analysis of what it takes to set up BLE scanning in each framework — Hatter's working three-tier C bridge vs miso-lynx's hypothetical six-step pipeline that is blocked on unmerged infrastructure (dual-thread PR jappeace#70). Written in response to dmjio's Discourse post claiming miso-lynx as an alternative with device API access. Prompt: read discourse thread, compare hatter vs miso-lynx with focus on bluetooth access, write report in hatter docs. Tokens: ~200k input, ~15k output Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
miso-lynx uses GHC 9.12.2's built-in JS backend, not the old standalone GHCJS (last based on GHC 8.10). The nixpkgs cross target naming (javascript-unknown-ghcjs) causes confusion. Added explicit note about this distinction and clarified the BigInt polyfill is a patch to GHC's rts/js/arith.js needed because LynxJS's PrimJS lacks native BigInt. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
docs/miso-lynx-comparison.mdcomparing Hatter and miso-lynx architecturallyWritten in response to dmjio's Discourse post claiming miso-lynx provides device API access as an alternative to Hatter.
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