Fix default agent setup edge cases

install/user/mise.sh

@@ -7,7 +7,7 @@ omarchy-mise-install copilot
 omarchy-mise-install opencode
 omarchy-mise-install npm:playwright playwright
 omarchy-mise-install pi
-omarchy-mise-install oh-my-pi omp
+omarchy-mise-install github:can1357/oh-my-pi omp
 omarchy-mise-install npm:@xai-official/grok grok
 omarchy-mise-install npm:@kitlangton/ghui ghui
 omarchy-mise-install aqua:modem-dev/hunk hunk