Are you intentionally trying to preserve lexicographic ordering? If so, doing percent-encoding-but-with-dash is reasonable and pretty easy to explain. If you do

Are you intentionally trying to preserve lexicographic ordering? If so, doing percent-encoding-but-with-dash is reasonable and pretty easy to explain. If you don't care about lexicographic ordering then I would recommend picking a different character than dash. Even if Datasette's particular set of tables don't use dash in their name, if you're hoping other people will use this same scheme then using a more esoteric character might be nice. Using &/$/! would still preserve ordering relative to alphabetic characters and are not commonly found in URL paths.