Decluttering
Digital Decluttering
Machines
Storage
PNPM Store
PNPM store could store a lot of unused / unreferenced modules / packages over the time. There's a command to clear unreferenced packages from the store.
Yarn Cache
What makes subsequent yarn install fast is it leverage cache. Similar to pnpm store (but a whole different concept and usage), it could also contain unused cached packages. We can clear the cache occassionally (not recommended to do this regularly).