An example that shows all GW-BASIC programs currently existing in BASIC Anywhere Machine:
(The following link fixed as per help from @Brian_Radspinner further below.)
https://basicanywheremachine.neocities.org/BAM_IDE.html#:[tag[.bas]regexp:description[(?i)GW-BASIC]sort[]]
It is a neat way to share the results of a query on a particular TiddlyWiki.
You’ll find the relevant, way too “understated” in my opinion, documentation in the Permalink tiddler, the “Story Permalinks” section.