Show HN: Coloured progress-bar for your Golang CLI

I have an unusual interest in progress bars. I've tried for years to come up with something better (no luck yet!). In particular I'd like to see more reliable ETA's in progress bars. At Microsoft in particular, there were so many progress bars that said "10 minute remaining", for like an hour or so.

One thought I've settled on is that every progress bar should create a documented estimated time remaining prediction at the very beginning, and send a copy of that, as well as the results, to the user as well as the creators (if the user has opted in), so that the forecasts could improve over time and be more reliable.

I'm not sure what that would look like, but seeing your project rekindled that wish for me. Nice job!