@massimolauria Well, it's not emacs or vim, but it is just a text editor. It's Textastic on my iPad with a custom 6502 syntax colouring.
https://www.textasticapp.com/
It's very handy when coding and writing on the sofa. 🙂
On desktop I flip between VSCode and BBEdit, though I disable almost every modern feature, especially anything that tries to be helpful. I can't be doing with any of that auto-complete popup nonsense!
The only feature that is absolutely essential to my work is regex search and replace. I like it old school (though not quite emacs or vim!).