Running OpenBSD 7.5 on your laptop is really hard (not) — I couldn't use OpenBSD exclusively; there's software that I need/want which isn't available. But I do appreciate certain of OpenBSD's qualities: it's a simple, ultra-lightweight, traditional UNIX. I have an ancient ThinkPad running OpenBSD configured as a minimalist desktop: it's nice for focused work. Sure, it can't run Steam or play Netflix, but sometimes that's a plus...
Pick: termscp — 🖥 A feature rich terminal UI file transfer and explorer with support for SCP/SFTP/FTP/S3/SMB
Learn Nix The Fun Way — Sure, it’s sort of portable, if you tell the person running it to have curl and jq. What if you relied on a specific version of either though? Nix guarantees portability.