It generally gets around 1000 users a day.
Over the years, it's gotten me consulting gigs and the occasional job offer (amidst other projects).
Today, it sends a decent chunk of the traffic and sign-ups to my startup, Wafris -> https://wafris.org
OP's asking for a strategy with these, and the advice I'd offer is to treat them like assets. You make these various side projects to learn something, take the extra 20% of time to package it up buy a domain, and spend $10 on a logo or something to make it a little more like a project and not just a repo.
If it's not something directly usable like this, take some screenshots and collect them into a gallery on a personal site.
You stack these assets over time (and like my example above), they pay off over years in all sorts of ways.