What do you mean? This is 100% open source and self-hostable!

https://github.com/cloudflare/cloudflare-os

It runs on the open source Workers Runtime:

https://github.com/cloudflare/workerd

You can run it at home if you want. There's even a Home Assistant Gatekeeper.

Yes, just like SaaS was a limitation to it's utility, PaaS is still a limitation, just on a different level.

There is also qm with smol machines. I found this out the long way, by looking at the contributors to qm at https://github.com/yc-software/qm where I found BinSquare, the founder of smol machines. Then I found a tweet about a public instance of it where I could try out having it code something agentically - I'm in the replies here: https://x.com/binsquares/status/2083305704274976819

I guess the lock-in is to Cloudflare Workers, which is limited to JavaScript. I would in fact look into projects that are built around MicroVMs and WebAssembly. It seems Buzz would be happy to use smolmachines, or whatever. You'd have to roll your own permission system, but smolmachines would at least take care of being able to use stuff within an app, by offering persistent, portable containers.

Actually I think now I can finally say why this sandstorm.io with Cloudflare OS has lock-in. The promise is "you can pretty much go wild" and that you can hand it off to non-technical people to do that. Much as you squint, there is not a sophisticated access control system available to self-hosted users. There's a framework for building a sophisticated access control system, but that isn't the same as having something open source that you can self-host and let non technical users go wild.

However, this is cool. I just agree with you that Buzz sounds more interesting to me as someone who was into Sandstorm.