Yuvi

@mahluk slow going :) Hopefully the tests are fixed up now, and we can figure out how to run these tests.

@minrk @betatim @manics @consideRatio would love some review on this one now - I *think* it's ready to go. This doesn't actually change any behavior, just makes that configurable. We...

@manics ok I think I've addressed all your suggestions!

@manics I've added the base image requirements as help text to the traitlet. Do you think that's enough?

@manics good question re: REES. I unfortunately don't have a clear answer there at all, as it's the first thing that's determined by a parameter you pass in, not something...

I really like the idea of pinning repo2docker versions, which seem like the easiest (and maybe only?) solution to this problem. If we can guarantee that a properly prepared repo...

Thinking more on this, there's three things we should try to allow users to pin: 1. Versions of languages (Python, R, Julia, etc) 2. Versions of libraries for the language...

@manics hmm, I don't fully remember :| I think maybe https://github.com/jupyterhub/repo2docker/issues/1041 was manifesting in reverse wrt the graphics engine? Closest guess.

@ryanlovett do you remember why we split which versions of RStudio are available in different R versions? Thanks for working on this, @aplamada!

/cc @d70-t, @rabernat (and others? idk). This would be the first step of letting a binder pull in content from IPFS directly.