Proof-of-concept: takes a random screencap, doesn't post it yet

flake.nix

@@ -0,0 +1,15 @@
+{
+  description = "Screencap bot for Cohost";
+
+  outputs = { self, nixpkgs }: let
+    pkgs = import nixpkgs {
+      system = "x86_64-linux";
+    };
+  in {
+    devShells.x86_64-linux.default = pkgs.mkShell {
+      buildInputs = with pkgs; [ ffmpeg openssl ];
+      nativeBuildInputs = with pkgs; [ rustc cargo pkgconfig clang ];
+      LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
+    };
+  };
+}