Yes it would be nice to add some graphs of position over time as well as letting you see which repos trended for longest overall, that sort of thing. Github could provide a much more sophisticated search of packages I think - they are ideally positioned to do this now. Re order I was thinking some sort of ordering based on days at the top, or days above a given rank? The ordering used by HN/Reddit is interesting for newer stuff (exponential decay based on time), not sure what Github uses. I guess from today you can store as much info as you want, but historical data would be a problem.

The backend go and js frontend seems to be a common pattern. I quite like keeping it all in Go, but it's nice to see how others structure projects and Go is certainly well suited for writing a backend service.