If you've got some nodejs, Javascript, Ruby or Python projects and you want to keep them around for posterity then I recommend thinking how you can package them up so they can be safely archived. You could use docker or a virtual machine image.

In my editor project ( screencast https://github.com/samsquire/live-interface/blob/master/scre... )

and in its various components written in Nodejs, Ruby (sourceclassifier) and Python (dot renderer) and they're all in disrepair because I failed to pin dependencies.

Also recommend taking lots of screenshots.