JPRECESS

[PaddyLeahy]

I got bored waiting for JPRECESS to precess a million positions, so I re-wrote it to eliminate the loop over positions in favour of large matrix operations, which sped it up quite a bit. I don't use github much: what's the protocol for uploading revisions?

[astroJarHead]

Do you have git installed so you can run it via command line? Or maybe via the desktop?

https://desktop.github.com/

The desktop might be the most intuitive way to do this for you.

Either the command line interface or the desktop gives you the facility to interact with github, and then check the github docs

https://docs.github.com/en/get-started

I think a fork may be a way for you to do this, and might even avoid using the command line or desktop on your own machine if you can edit the .pro file within the fork on github.com/wlandsman/IDLastro

https://docs.github.com/en/get-started/quickstart/fork-a-repo=

I followed the command line and desktop methods, made a few clumsy errors and eventually figured it out, somewhat.

Good luck.