Well crap. A project from over 5 years ago, when I wasn't doing things well, and I've not got package versions recorded, and was doing all of the analysis via a `knitr` script, with very few intermediates saved.

And now collabs have reviewer comments, and want to change some outputs.

The package is under a git repo, but figuring out how far back to go is a pain in the butt.

So glad using `renv` now at least gives me a record of what versions I had at the time of analysis. #RStats

@rmflight I have been there, good luck! I was quite scared but it wasn't that hard. check git commit dates and look for "date when the analysis started" (close to the first commits). Then use the released R version from that date. Next, setup the posit package manager to somewhere in the middle of the git commit dates. Why middle? You don't install new packages when you are fixing last bugs, but you may need some extra package mid analysis, so middle worked well for me.

And that's it.