scx_git: init; scx: remove

Everything at this moment builds
Add rusty to overlays.nix and scx-git/full.nix once PR on nixpkgs is available in unstable
Rename scx.csheds -> scx.cscheds once PR on nixpkgs is available in unstable

overlays/default.nix

@@ -64,7 +64,7 @@ let
   makeMicroarchPkgs = import ../shared/make-microarch.nix { inherit nixpkgs final selfOverlay nixpkgsExtraConfig; };
 
   # Common stuff for scx-schedulers
-  scx-common = final.callPackage ../pkgs/scx/common.nix { };
+  scx-common = final.callPackage ../pkgs/scx-git/common.nix { };
 
   # Required for 32-bit packages
   has32 = final.stdenv.hostPlatform.isLinux && final.stdenv.hostPlatform.isx86;
@@ -251,16 +251,17 @@ in
 
   spirv-headers_git = callOverride ../pkgs/spirv-headers-git { };
 
-  scx = final.callPackage ../pkgs/scx {
-    inherit scx-common;
-    scx-bpfland = final.callPackage ../pkgs/scx/bpfland { inherit scx-common; };
-    scx-lavd = final.callPackage ../pkgs/scx/lavd { inherit scx-common; };
-    scx-layered = final.callPackage ../pkgs/scx/layered { inherit scx-common; };
-    scx-mitosis = final.callPackage ../pkgs/scx/mitosis { inherit scx-common; };
-    scx-rlfifo = final.callPackage ../pkgs/scx/rlfifo { inherit scx-common; };
-    scx-rustland = final.callPackage ../pkgs/scx/rustland { inherit scx-common; };
-    scx-rusty = final.callPackage ../pkgs/scx/rusty { inherit scx-common; };
-    scx-stats = final.callPackage ../pkgs/scx/stats { inherit scx-common; };
+  scx_git = {
+    bpfland = final.callPackage ../pkgs/scx-git/bpfland { inherit scx-common; };
+    cscheds = final.callPackage ../pkgs/scx-git/cscheds.nix { inherit scx-common; };
+    lavd = final.callPackage ../pkgs/scx-git/lavd { inherit scx-common; };
+    layered = final.callPackage ../pkgs/scx-git/layered { inherit scx-common; };
+    rlfifo = final.callPackage ../pkgs/scx-git/rlfifo { inherit scx-common; };
+    rustland = final.callPackage ../pkgs/scx-git/rustland { inherit scx-common; };
+    # FIXME-SCX: rusty will fail to build unless https://github.com/NixOS/nixpkgs/pull/352077 is available in unstable
+    # rusty = final.callPackage ../pkgs/scx-git/rusty { inherit scx-common; };
+    # FIXME-SCX: add rusty to full once the above PR is available in unstable
+    full = final.callPackage ../pkgs/scx-git/full.nix { inherit final; };
   };
 
   sway-unwrapped_git = callOverride ../pkgs/sway-unwrapped-git { };