I used VLC in the past but switched to the simple music player after having too many bugs and crashes with VLC on my phone.

One alternative are monadic types like result or maybe, that can contain either a value or an error/no value.

Having the commands listed at the bottom by default is one thing i personally dislike about nano, because they take up space while being useless to someone knowing the commands (or at least knowing how to open the help in, which is what you can do in vim to achieve the cheat sheet). The alternative that vim uses, is to show the commands when starting the editor without opening a file.

I use both versions actively, the main differences of SCEE compared to StreetComplete are the addtion of more obscure questions (for example building and roof colors, species/genus of trees), allowing direct editing of tags and disabling the gamification/statistics.