PICO (the PIne COmposer) is described as 'PICO means "very small" and also stands for "PIne COmposer"' and is an app in the Development category. There are more than 10 alternatives to PICO (the PIne COmposer) for a variety of platforms, including Linux, Mac, Windows, BSD and Haiku. The best alternative is Visual Studio Code, which is free. Other great apps like PICO (the PIne COmposer) are Vim (Free, Open Source), VSCodium (Free, Open Source), GNU nano (Free, Open Source) and GNU Emacs (Free, Open Source).
VS Code is more than just a code editor, it provides the tools and extensions to compile, debug, compare, refactor, and even manage code repositories all within a highly-customised development environment.
GNU nano is a small and friendly text editor. Besides basic text editing, nano offers many extra features like an interactive search and replace, go to line and column number, auto-indentation, feature toggles, internationalization support, and filename tab completion.
CudaText is a cross-platform text editor, written in Lazarus. It starts quite fast (0.5 sec with ~30 plugins on CPU Intel Core i3 3Hz). It is extensible by Python add-ons (plugins, linters, code tree parsers, external tools).
Tilde is a text editor for the console/terminal, which provides an intuitive interface for people accustomed to GUI environments such as Gnome, KDE and Windows. Example: copy current selection is Control-C; paste previously copied text is Control-V.
vy is a modal editor with a very modular architecture. vy is built on top of Tkinter which is one of the most productive graphical toolkits; It permits vy to have such a great programming interface for plugins.
4coder is a minimalist, cross platform, programmable, code editing environment, catering to the needs of low level programmers. It allows you to use one work flow across Windows, Linux, and Mac (with the exception of your debugger... for now.).