I am involved with the Snowdrift project (as part of their volunteer board). Snowdrift is focused on works under free/libre/open licenses. Closer to Liberapay, but with a co-op governance structure & a "crowdmatching" approach where you can match other people's contributions as they join.
It's also doesn't have live projects yet and is (tbqh) very slow going as a pure volunteer effort. Comradery is closer to being usable today, with >20 projects already on the platform.
chaos.social – a Fediverse instance for & by the Chaos community