If I could not really use a computer at the moment, I would look at the biggest project dependencies, if some are unknown to me (or I don’t know them enough) I

If I could not really use a computer at the moment, I would look at the biggest project dependencies, if some are unknown to me (or I don’t know them enough) I would instead spend sometimes reading their documentation. It does not fully answer the question, but I think I would still gain valuable knowledge about the codebase indirectly, rather than being utterly slow trying to navigate a big codebase on my phone.