0, http://www.tinycorelinux.net/
1, https://web.archive.org/web/20240901115514/https://pupngo.dk...
Honestly it comes down to what do you mean by using Linux. In 2026, or well at least since the mid 2010s, the biggest hurdle will be the web browser. Do you need that? If yes then you are already in the higher system requirement pool. If not then pretty much anything goes, like the options I mentioned above. And even then you can use curl, wget, aria2 etc to access online content to some extent