treewide: remove meson mention

counterpart to https://github.com/hyprwm/Hyprland/pull/12344

content/Contributing and Debugging/_index.md

@@ -35,13 +35,6 @@ breakpoint and it will crash after you continue out of it.
 
 Attach and profile in your preferred way.
 
-### Meson
-
-```console
-meson setup build -Dbuildtype=debug
-ninja -C build
-```
-
 ### Nix
 
 To build the package in debug mode, you have to override it like this:

content/Getting Started/Installation.md

@@ -407,20 +407,6 @@ make all && sudo make install
 _CMake is always recommended as it's the intended way Hyprland should be
 installed._
 
-### Meson
-
-```sh
-meson subprojects update --reset
-meson setup build
-ninja -C build
-ninja -C build install --tags runtime,man
-```
-
-Custom build flags can be found in [`meson_options.txt`](https://github.com/hyprwm/Hyprland/blob/main/meson_options.txt).
-
-Refer to [Debugging](../../Contributing-and-Debugging) to see how to build &
-debug.
-
 ## Crash on launch
 
 See [Crashes and Bugs](../../Crashes-and-Bugs).

content/Nix/Contributing and Debugging.md

@@ -16,7 +16,7 @@ A debug build is already provided through
 Most hyprwm apps also provide their own `-debug` versions. For those that don't,
 one can build the debug version from the CLI by using
 [overrideAttrs](../Options-Overrides/#using-nix-repl) with
-`cmakeBuildType = "debug";` or `mesonBuildType = "debug";`, depending on the
+`cmakeBuildType = "Debug";` or `mesonBuildType = "debug";`, depending on the
 program.
 
 ## Bisecting an issue
@@ -67,8 +67,8 @@ For CMake:
 
 ```bash
 cmakeConfigurePhase # to run the CMake configure phase
-ninjaBuildPhase     # to run the Ninja build phase (or buildPhase when ninja is not available)
-ninjaInstallPhase   # to run the Ninja install phase (or installPhase when ninja is not available)
+buildPhase     # to run the build phase
+installPhase   # to run the install phase
 ```
 
 For Meson:

content/Nix/Options & Overrides.md

@@ -53,10 +53,10 @@ nix-repl> :bl outputs.packages.x86_64-linux.hyprland.override { /* flag here */
 
 Then you can run Hyprland from the built path.  
 You can also use `overrideAttrs` to override `mkDerivation`'s arguments, such as
-`mesonBuildType`:
+`cmakeBuildType`:
 
 ```nix
 $ nix repl
 nix-repl> :lf github:hyprwm/Hyprland
-nix-repl> :bl outputs.packages.x86_64-linux.hyprland.overrideAttrs (self: super: { mesonBuildType = "debug" })
+nix-repl> :bl outputs.packages.x86_64-linux.hyprland.overrideAttrs (self: super: { cmakeBuildType = "Debug" })
 ```