pvsneslib VS vigil

There's an open-source SDK: https://github.com/alekmaul/pvsneslib

There is. But it doesn't get much traction for some reason. Maybe because working with SNES remains hard, even with a modern toolchain, and you'll need to deal with assembly a lot of times to get decent performance, much more than with Genesis.

I 100% recommend starting with C and PVSNESlib (https://github.com/alekmaul/pvsneslib) as suggested by others redditors.

SNES coding is hard as fuck and probably the worst way to learn programming if you start from scratch. It might be a little less painful with a C library like PVSneslib (https://github.com/alekmaul/pvsneslib), but you'll eventually have to learn 6502 assembly and read tons of documentation to harness SNES programming.

PVSNESLib for example provides a toolchain (some of it indeed being pre-written assembly "headers") that does in my experience allow for the development of fully-featured SNES games pretty much entirely in C.

Reminds me of Vigil. https://github.com/munificent/vigil

Should it be a variation on another programming language, so something that just looks through another language's code and modifies it a little bit like this: https://github.com/munificent/vigil/ or should it have a fully fleshed out parser, lexer, interpreter/compiler etc.?

I code in Vigil. If some part of the code throws an unhandled exception it gets automatically deleted. Bug free app in few invocations!

This reminds me of Vigil, a very odd language derived from python that deletes your code if you break your promises.

Easy, just program in Vigil

Sounds kind of like vigil, where things that are wrong are duly punished

Vigil, but for moral rather than practical reasons.