alt Hacker Newstxt file is great. Makes me wonder, does the author always have their laptop on them since that's the only place I know of where a txt file can live? Do they go to sleep and wake up next to their laptop?
I've always been an iPhone user and have never seen a .txt file on one and probably you wouldn't be able to edit one on an iPhone if you did have it in Files app - I'm not counting Notes app as a text file here.
I do quarterly notes inside of Notes app but it mostly non-work related stuff and doesn't integrate well with desktop since its kind of a pain to login to iCloud from browser. Quarterly notes bc once the note gets too long, it gets very laggy on phone and is difficult to navigate; i.e. getting to the bottom to write a new line can be tough on mobile.
Replies
I do the same as the author and sync the file with nextcloud. Rarely open it on my phone but if I must, I can.
There are multiple text editors that work just fine on iPhone, certainly on Android as well. Textastic and Runestone are two for iOS (there are more). They read and write text files just fine. You can even keep them version controlled in Github or other Git systems using Working Copy, which allows flexibility in modifying the text file in multiple locations.
https://gitjournal.io/ is something I've started using recently. I edit Markdown notes on my mobile device, and they are then automatically synced to a Git repository.
You don't have to use the same solution for work and personal notes
"I use Remote Desktop so everything is accessible from every device"
I use Termux on my Android phone and sync my text-files using git or fossil, just like how I sync between laptops/desktops. I run Emacs in Termux (but vim and many other text editors are also available, for those that prefer those). No need for special apps or cloud stuff, just syncing the plain files and using the same software I use on bigger computers.