Hi @sgibson91, Thanks for letting me know that my diagnosis was in fact correct. I was a bit doubtful because in this post , @betatim suggested the limit might be 3GB, and 3GB seemed like plenty for doing the tiny task I was trying. But if it is in fact 1GB, that explains a lot.
Thanks for the GESIS tip. I was not aware of that option.
Just to supply some context, when teaching Bayesian methods using Stan/brms, a very persistent issue is students encountering problems installing the C++ toolchain. Many give up when they encounter these problems. I was hoping I would be able to provide binder based examples with small demos which would be perfectly sufficient for teaching introductory topics. I will try my luck with GESIS notebooks now.