Write.as is now #FOSS! ? We've named the software behind it #WriteFreely.
WriteFreely lets you self-host a single federated blog or a community of blogs. It's written in Go / #golang, it's lightweight, and runs everywhere -- even on a Raspberry Pi! (We tried ?)
We just launched v0.1 this weekend, and v0.2 is already coming out early this week. You can try a full demo here: https://pencil.writefree.ly
Get started with hosting or find a permanent instance here: https://writefreely.org