The chalet CLI has a run command, which sets up and runs a temporary server, outputs the server's logs to STDOUT, and removes the server config (to clean up) when the server process has stopped.

However, if I need to stop the server and restart it for some reason, then it will run under a different port number the second time (typically the next number in some sequence). If I switch to the browser tab where I had loaded the app in its first run, it will have the first port number in its URL, but that port number is no longer being used — therefore reloading that tab will fail with a server-not-found error.

It would be great if the chalet daemon would remember servers previously run and their assigned port numbers, so that if another server is run with the same name, the previously used port number could be reused. This could simply be an in-memory hash that would persist only while the chalet daemon is running. The run command would still clear the server's temporary config file when the run command exits, but just keep the port number in an entry for that server name in the daemon's memory.