I wanted to add likes/kudos to my blog without tracking or account creation. I also wanted an excuse to build my first project with a backend.

I focused on:

* privacy: no user tracking; no account required

* accessibility: kb navigation, screen reader friendly

* works without js: the button is a `<form>` submission when JS is disabled

* lightweight: ~3KB of JS

* self-hostable and free: AGPL licensed; can run on your own PostgreSQL setup

The backend stores URL + counter. No timestamp, IP, user-agent, cookies…

Since 500MB of free Supabase storage can support over 100,000 sites, I decided it to make it free and public.

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Code (AGPL) & self-hosting guide: https://github.com/welpo/iine

The full story (my blog post): https://osc.garden/blog/iine-small-web-like-buttons/

Feedback is more than welcome!