Hey @Froosty we’ve been digging into this a little bit recently - apparently Nuxt.js is incompatible with pnpm < 3.x, we think because of https://github.com/pnpm/pnpm/issues/1601. Unfortunately pnpm 3 is incompatible with pnpm 2.x, which is what Glitch uses, and the migration path from 2 -> 3 isn’t a simple one for us. We’d like to make the jump, but I don’t have a timeline for when we might get to it.
npm will work fine, but that means that your packages consume project space, so Nuxt.js projects on Glitch must be fairly small.
Sorry for the bother!