Hey everyone! I wanted to play with Haskell (https://ihp.digitallyinduced.com/), and Rust (Cloudflare workers), so I decided to make a product with them. This is the MVP I’ve come up with. It supports teams, projects, environments, flag variations, scheduling and expiry, and a reasonably complete targeting system that support Boolean logic combining user ID targets, arbitrary metadata targeting, rollout targets, and default fallthrough variations.

Some of those are features that are in the most expensive tier of other offerings, but they're all in my free tier because restricting them to higher tiers seemed silly to me.

There’s a typescript and react SDK, and swagger API docs. The website runs on IHP, and the actual flag resolving API is deployed on cloudflare workers, so response times are generally 40-100ms (though that could be due to my internet, it might be faster for you).

Coming soon: reusable groupings of users, and a dashboard showing all the users that have been targeted, what flags they evaluated, and what they evaluated to.

Feel free to ask any questions, and let me know what you think!