Kindcipher

The Letter Desk

Adapted from Peel by Charlie Krug, MIT license. 0 GitHub stars observed November 9, 2026; last maintained July 9, 2026; pinned source commit 67396573e74f742bd50e5283e2538fe85194fbcc. Chosen below the popularity preference after popular maintained candidates duplicated the catalog.

Original six transform modules, operation registry, chain runner, puzzle state and move/undo validator are preserved, with only imports flattened for deployment. This edition adds twelve original harmless letters, an accessible DOM interface, static archive, layer guide, nudges, bounded workbench, local collection and new artwork. The original command-joke puzzle corpus, canvas presentation and clipboard sharing are omitted.

The wrapper module is a balanced-call and quote parser. It strips a wrapper into plain text; it never runs its contents. All letter content is rendered using textContent. No code runner, backend, model, authentication, external runtime resources or downloads.

Built-in GPT image model generated the cotton-paper play surface and four opening-envelope states for this edition. Optimized as local WebP. The envelope changes with actual known-layer progress; paper is the surface on which the playable text appears. Optional sounds are synthesized locally.