Add step-by-step installation instructions

[Soupstraw]

The readme says:

Import this flake like you would any other.

I could not figure out what this means. I've tried importing it as a module, but the flake does not contain any nixosModules. I've also tried applying the overlay in the flake to nixpkgs, but that still didn't give me the mkBwrapper function. I think step-by-step instructions would really help here.

[Soupstraw]

Ok, the overlay started working after I updated my flake, but I still think it's a good idea to write better instructions, especially for beginners.

[Naxdy]

I added a few more examples (including a minimal flake) as part of #7 , let me know if you think that is sufficient, or if you think it'd benefit from a more granular guide.

[Soupstraw]

Yeah, I think that looks better, although I think many people would like to apply the overlay and then use the packages via environment.systemPackages in their NixOS configuration.

[Wabelbit]

I'd like to add another suggestion for the README to this thread:

as sort of a quickstart TLDR, it would be quite helpful to expand on the hint about examples at the top:

The flake.nix contains a few examples with some commonly used (unfree) applications

I found your project specifically when looking for a way to easily bubblewrap discord without needing flatpak, but somehow that statement wasn't concrete enough for me to conclude that I could just use nix-bwrapper.packages.x86_64-linux.discord-wrapped and be done with it. Though I'm not sure it is really intended that way, but it would be very handy!

Furthermore, I also found 2 issues:

• the very first example flake code in the readme starts with imports but it should be inputs :)
• the provided discord-wrapped doesn't actually work, it fails with

  libEGL warning: egl: failed to create dri2 screen
  [191:1009/023128.914317:ERROR:viz_main_impl.cc(183)] Exiting GPU process due to errors during initialization
  

  at least on wayland with nvidia, not sure if that's at fault here – though the non-wrapped discord package works just fine.
  Then again, I don't know if it's even supposed to work :D

[Naxdy]

We now have a more comprehensive documentation site available at https://naxdy.github.io/nix-bwrapper

Let me know if this sufficiently addresses this issue. If not, let me know what you would expect to see from the documentation! :)