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Ember now has preliminary TS7 support ~ via the content-mappers feature that merged in TS last week Testers wanted! (requires TS Nightly)

I see that you’re asking your users to reference "ember-source/types" and "@glint/ember-tsc/types" via compiler options. This is fine of course, but you could also ///<reference /> those types in your mapped content. You could even import what you need, so you don’t need globals.