I find it quiet funny there are a bunch of unix sysadmins in here talking about how PS isn't great, but admit to only touching it "sometimes" for some minor use case. Well, no shit. I now do cloud/unix/windows dev and formerly used to admin both types and use both bash and PS and have to say I like PS better, only because the community around it is less toxic and does not gatekeep. From actual REPL language POV though, PS serves its purpose quiet well and I look forward to where it takes us in the future.
If you want to run you own version of this - try this https://hub.docker.com/r/linuxserver/code-server, its very easy to configure. linuxserver has created code-server - which is vscode running in container. I have been running it in my personal network for nearly a year now. It great because it lets you code from any device. Sometimes I use this to quickly script out things on my ipad and then execute whatever script I have created using Terminus.