Sali

Gym tracker

A gym tracker for a few friends, made for logging between sets.

Why I built it

I wanted logging a set to take one thumb and two seconds, and to share my workouts with friends.

The problem

Gym apps are either bloated or locked to one person. I wanted one that is fast enough to use between sets and that a few friends can share.

Everyone has their own sign-in, their own workouts and remembered weights per exercise, and gym buddies can share a workout.
A logging screen made for one thumb, a rest timer that keeps the screen on, and progress per exercise.
It installs to the phone’s home screen and works in Finnish and English.

One Node process: Hono serves the API and the React app, and all the data is a single SQLite file.
New people join through invite links. There are one-time links for the first admin and for password resets.
An end-to-end test walks every screen on a headless phone, in both languages and both themes.

Inputs

Core

Outputs

Functional block diagram.

Sali at a glance
Platform	Installable web app (PWA)
Users	A few friends, each with their own sign-in
Storage	One SQLite file
Hosting	Home server, reached over Tailscale
Languages	Finnish, English
Status	In use
Built	2026
Stack	TypeScript, React, TanStack Query, Hono, SQLite, Vite, vitest, Playwright, PWAs
Code	Private

Revision history
Rev	Date	Change
E	2026-10-26	Drag to reorder workouts, and a recovery view per muscle group.
D	2026-10-24	Alternative exercises on the logging screen; in use on a home server.
C	2026-10-20	AI notes when progress stalls, and a weekly summary.
B	2026-10-19	The logging screen, rest timer, progress charts and records.
A	2026-10-18	Accounts, invites and sessions backend; remembered weights; history.