How I built an offline-first AI productivity OS for Windows

#typescript #productivity #electron #showdev

I kept bouncing between a planner, a habit tracker, a focus timer, and a notes
app — and the context-switching was killing the thing I was trying to protect: focus. So I built Rank-Forge, a single offline-first desktop app that unifies all of it.

What it does

AI daily planner that builds your day from your goals and replans when you drift
Deep-focus mode— full-screen, distraction-blocking, with a focus score
Habits, streaks & XP that are burnout-aware
Local analytics — focus trends, best/worst hours, a study heatmap
100% offline & private — a local SQLite database, no account, no cloud

How it's built
Electron + React + TypeScript on the front, better-sqlite3 for a synchronous local store, with the AI layer pluggable (bring your own key). Everything runs on-device, which forced some interesting tradeoffs around doing "smart" planning without a server.

Try it
It's free for Windows 10/11.