FinalCommander
One file. Every system. Everything in it.
FinalCommander is an orthodox file manager for the terminal: two panels, the keys FAR Manager gave them, and no installer. One executable of about five megabytes carries the archiver, the SFTP and FTP and WebDAV client, the S3 browser, the viewer that opens a forty-gigabyte log at once, the hex editor with its assembler, the search across files and the editor that colours code. Copy it onto Linux, macOS or Windows and it is the same program with the same keys; scp it to a server and it works there too.
I do not need your code. I need your ideas: open an issue with your idea and it goes into the next release. Open an issue
What it looks like
Drawn by the program itself, not photographed.