Joshua Bemenderfer

Software and database work, plus some teaching, in northwest Georgia.

Writing

• I can't figure out how to write
  Aug 31, 2026
• Why my site looks like Maverick Meerkat
  Aug 31, 2026
• The AI takeover is fun for me (and no one else)
  May 19, 2026

Projects

• uApp — single-file shareable apps: the app, its data, and an AI assistant that builds it all live in one SQLite file you can send around like a spreadsheet. The linked demo runs the whole runtime in your browser (WASM), with sample apps to try. Source on GitHub.
• CubbyCAD — a 3D CAD editor that runs in the browser. Solid modeling, a sketcher, a modifier stack, voxel sculpting, and slicing, all client-side. Built with Vue and Three.js.
• Cannons & Coastlines — a 3D-printable tabletop naval game for 2 to 20 players. The rules, faction cards, and print files are on the site.
• KeeNet — a password manager compatible with KeePass (.kdbx) that runs in the browser, installs as a PWA, and ships as desktop and mobile apps. A ground-up Vue 3 continuation of KeeWeb.
• IncrediBots — a browser revival of the classic physics sandbox: build machines from shapes, wheels, and motors, then run them to see what they do.
• Directus Extensions — a set of reusable Directus extensions: MCP connectors, embeddable forms, a Collabora integration, and a server-side page renderer.

Experiments

• guido — a native UI runtime for desktop apps. Write the app in Bun, Python, Rust, Go, C, Zig, or Nim; a small Godot-based runtime draws the windows and widgets. Installs from npm or pip with the runtime included.
• sqlite-rls — row-level security for SQLite as a loadable extension: declarative per-user access policies, enforced by the database, usable from any language. Docs with guides and examples for C, Rust, Python, and Bun, and Node.
• litebase — a live demo of the above: a small self-hosted Supabase-style backend (auth, REST, realtime, storage) on SQLite, with every row scoped by sqlite-rls. Sign up in two browsers and watch each account see only its own data.
• Photo Booth — an AI photo booth for thermal printers. Capture or upload a photo, optionally restyle it with Gemini, and print to a Bluetooth thermal printer (Phomemo, Cat, Marklife, or ESC/POS). Installs as a PWA.
• Derf Auth — passwordless single sign-on for the sites above.