Notes on building plastron and other reactive, offline-first tools in the open. Filter by tag, or subscribe via RSS.
sql.js loads the whole database into memory; ordinary SQLite doesn't. A TypeScript demo puts the demand-paged model back in the browser — SQLite whose pages live in IndexedDB, read on demand, with FTS5 and CRDT in the same build — running from a double-clicked file:// page.
Cryptographic role-based access control over a local-first CRDT database — records a group can keep together, merged for local and group consensus, with Shamir threshold custody so no single keyholder is ever worth coercing. A tour of the datalayer, plus a live three-user demo.
Web apps are easy to build; getting IT to approve them is not. A single HTML file is the free intermediate step — offline, no server, but with SQLite, Web Crypto, and a scannable QR that composes your form data into a label so transcription never has to happen.
A sovereign, offline-first counterpart to enterprise core banking: a person-centered credit-union core in one encrypted HTML file, with CRDT multi-operator merge and waumpaum settlement between institutions. Teller, merge, and payment-provider walkthroughs with videos.
Chaos-based edge steganography from crypt0lith, running verbatim in Pyodide cells. Hide a plastron.ca #f= link in a Twitter-safe PNG; recover it with cover + password.
A plastron detour — CRDT SQLite in one HTML file for offline HR merge. Juárez-skinned demo; patterns intended for plastron's own offline-capable future.
Zhuangzi's tortoise story in traditional Chinese. Click any character to break it down through a decomposition tree with English glosses.