Mattermost started paywalling features it used to give away and sells the rest by the seat. Antimatter is the fork with the licence checks pulled out: SSO, LDAP, no nag screens, no invoice.

“Unfortunately, after a few disappointments at a previous company actually trying (and giving up) to buy a licence, and after their latest actions, which I could only call backstabs (paywalling previously available features, putting arbitrary limits that previously didn't exist, or recently adding nag screens to push people into either buying their licence or just away from their platform altogether), I've ended up fed up with their BS and started to work on a fork.”

self-hostedprivacyproductivityopen-sourcevibe coded

by Throwasys🔥 10/10

SEP 2026

💬

replaces~~Slack Pro · $8.75/user/mo~~

Deft

Slack bills you per head, per month, forever. Deft puts chat, tasks and notes on your own server and bills you nothing.

“This started with three things: wanting Slack to do more, a growing resentment of SaaS bills, and getting slightly too obsessed with self-hosting.”

webself-hostedproductivityopen-sourcevibe coded

by Maneek21🔥 10/10

SEP 2026

✉️

replaces~~Superhuman Starter · $30/mo~~

Attn

Superhuman charges $30 a month to make Gmail fast. Attn does it from your own laptop for nothing.

“I wanted Superhuman-like private Gmail client without the subscription, so I built one.”

desktoplocal-firstproductivityopen-source

by Chao Wu🔥 8/10

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Built something because a company wanted your credit card for a feature that fits in a single file? That's spiteware. Submit it and join the hall of fame.

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Cairn Notes

More grudges same energy

Antimatter

Deft

Attn

Got a grudge?Ship it.

Got a grudge?
Ship it.