If you’ve been programming for a while, you can learn how to make your own language variant in something like 1 or 2 days. Not just compiler but tooling for an IDE and code completion too. So it’s relatively easy to do.

Personally I’d want to create a language that combines the memory model of rust with the syntax of python and has pipeline coding like nushell or powershell. When it’s done it will be the perfect language and everyone will want to learn and use it!