I am now editing Remacs from within Remacs!
(To be honest, the main difficulty was porting my config for Emacs 26.)
miniblog.
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On the difficulty of making money from FOSS, and how having a widely popular project does not mean it has commercial value:
Compile-to-web PLs come in three flavours (increasing difficulty of adoption):
JS-like: different syntax/semantics, existing JS tooling: Typescript, CS
Separate world: builds own toolchain: Elm, Purescript
Separate platform: includes own runtime/needs FFI: ScalaJS, Pyjamas
A friend of mine is integrating PHP CMS tools with difficulty. As a dev, I can roll my own, but I don't know what to recommend to others.