It's still kinda shit innit?

shell.nix

@@ -0,0 +1,45 @@
+{pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+	buildInputs = [
+		pkgs.cbonsai
+		pkgs.cmatrix
+		pkgs.neo-cowsay
+		pkgs.fortune
+		pkgs.nyancat
+		pkgs.coreutils
+	];
+
+	shellHook = ''
+		STIME=5
+		programs=("cbonsai" "cmatrix" "nyancat" "fortuneCow")
+	
+		while true; do
+			choice=$(shuf -n 1 -e "cbonsai" "cmatrix" "nyancat" "fortuneCow")
+			clear
+			tput sgr0	
+			case "$choice" in
+				cbonsai)
+					timeout "$STIME" cbonsai -t .2 -l
+					reset
+					clear
+					;;
+				cmatrix)
+					timeout "$STIME" cmatrix
+					reset
+					clear
+					;;
+				nyancat)
+					timeout "$STIME" nyancat
+					reset
+					clear
+					;;
+				fortuneCow)
+					fortune | cowsay
+					sleep "$STIME" 
+					clear
+					;;
+				esac
+			done
+	'';
+}