@trysmudford @Netlify You can get fine-grained control over that (smarter people than I can help describe details) but you can also get it automatically via the post-processing optimisations. Along with various assets optimisations, that will fingerprint everything and manage far future cache for you.
My tweets and posts live here on my own domain these days.
You can explore them here and follow me on Mastodon instead of Twitter where I'm not currently active.