Being a supporter of Neocities ( I think it is good for folk to have a free place to build old-school websites), I’ve been hosting all of my TiddlyWiki instances over there,
Of course, Neocities being free and it always having potential of hosting sites that might not be appropriate/trustworthy, some environments may completely block access to Neocities.
I’ve just setup https://bam-ide.tiddlyhost.com/ so that anybody interested in it but could not access it, now hopefully can give it a spin.