Yesterday I upgraded a small #ElixirLang Phoenix LiveView application from Tailwind v3 to Tailwind v4. Two resources helped:

- Hex package upgrade docs at https://github.com/phoenixframework/tailwind?tab=readme-ov-file#updating-from-tailwind-v3-to-v4
- This gist: https://gist.github.com/frankdugan3/8f46f6d6aeb7bfcb95c6b9fc041e0b2a

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