When comparing nano vs Suplemon, the Slant community recommends nano for most people. In the question“What are the best programming text editors?” nano is ranked 14th while Suplemon is ranked 51st. The most important reason people chose nano is:
Nano includes only the bare minimum of functionality needed to edit documents making it very simple.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to use
Nano includes only the bare minimum of functionality needed to edit documents making it very simple.
Pro Built-in cheat sheet for shortcuts
Shortcuts for common commands are shown at the bottom of the editor.
Pro Available on almost every Linux system as default
Similar to vi (vim), you can find nano on most Unix-like systems (even on Cygwin).
Pro Most of the languages supported
Syntax coloring is available for most of the programming language.
Pro Lightweight and bug free
Very stable editor that never hangs / leaks or crashes.
Pro Native multi cursor editing on the command line
Multiple cursors & column selection allow versatile ways of editing.
Pro Low learning curve
Does not drown you in keyboard shortcuts or non-intuitive use-concepts as you start using it, but high-level functionality can still be easily accessed when the need for it arises.
Pro Mouse support
Scroll wheel works automatically. With mouse mode (F8) the cursor can be moved with a left-click to a desired position, and new cursors can be added with right clicks.
Pro No required dependencies
Pro Shows linting messages for Python code (requires flake8)
Cons
Con Limited feature set
While nano is fine for writing blog posts or doing quick modifications, it's probably not suitable for programmers or someone who needs to work on an editor for an extensive period of time.
Con Uncommon keybindings
Nano uses a strange set of default keybindings, which is totally different than Vim, Emacs, VSCode and Sublime.

Con No region selection
Some selection features that are taken for granted in other editors are missing here. As they say in their documentation, if you want to copy and paste part of a line, you need to use the mouse to select it and copy with Ctrl + Shift + C.
