flake: remove flake-parts and nix-systems from flake

[imnotpoz]

this was at first meant to be on a personal fork to minimize the inputs of my system's flake but since @NotAShelf shared his plans to get rid of those 2 inputs anyway I decided to clean it up and open this PR

nix-systems was replaced with lib.platforms.all

flake-parts was replaced with eachSystem and eachSystemPkgs

things I deemed small enough to inline were brought from separate files in flake/ into the flake itself, the bigger things or ones that could get bigger in the future were left under flake/

Sanity Checking

• I have updated the changelog as per my changes
• I have tested, and self-reviewed my code
• My changes fit guidelines found in hacking nvf
• Style and consistency
  • I ran Alejandra to format my code (nix fmt)
  • My code conforms to the editorconfig configuration of the project
  • My changes are consistent with the rest of the codebase
• If new changes are particularly complex:
  • My code includes comments in particularly complex areas
  • I have added a section in the manual
  • (For breaking changes) I have included a migration guide
• Package(s) built:
  • .#nix (default package)
  • .#maximal
  • .#docs-html (manual, must build)
  • .#docs-linkcheck (optional, please build if adding links)
• Tested on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin

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Debug Information

Triggered by: imnotpoz

HEAD at: main

Reruns: 3047

[snoweuph]

Just dropping this from matrix here:

can't really give you a review on this one, because this is the kind of thing, that 100% depends on what raf decides in the end xD.

[imnotpoz]

Just dropping this from matrix here:

can't really give you a review on this one, because this is the kind of thing, that 100% depends on what raf decides in the end xD.

responding to raf: there's no new ../s introduced in this PR, the only ones added have already been there

the ones that are here could be fixed by just doing "${self}/dupa" instead of ../dupa (or worse), I don't see these as issues of removing flake-parts

[snoweuph]

im becoming a digital mailman xD

[imnotpoz]

well then tell raf to get his lazy ass over here!!!!!

[snoweuph]

well then tell raf to get his lazy ass over here!!!!!

I dont think so, he got new Wires I heared and is in fucking pain....

How about you get your ass on matrix :3 #nvf:notashelf.dev

[imnotpoz]

thanks to @BANanaD3V for this image where I found this new function from the second commit