I guess darklang was too far ahead in their thinking in some areas and choose the wrong path for other. I really liked the deployless idea, but would have loved in even more on-premise. No way to get the data to stay in Europe.
Making hard connections between the editor and the lang was interesting also. Seems like they have moved away from that.
Hope there is a easy way to set it up locally, i was really intrigued when they first launched
Yes, the next version will be able to set up locally - you'll be able to install a single Darklang binary and run any darklang program without any further steps. See the explanations on https://darklang.com homepage.
The issue with the hard connection between the editor and language is that each change becomes a massive undertaking. Making a language improvement was much much much simpler than making the editor change to support it.