[notpushkin]

I did my share of PR reviews from a phone using FastHub-Libre [1] :-) No code changes, although I've fixed a typo in README once I think.

[1]: https://f-droid.org/packages/com.fastaccess.github.libre/

[CarVac]

I've edited code on mobile plenty of times just using the mobile GitHub webpage. Usually just small tweaks and typo fixes though.

I don't see why you would need an app though.