Had a few minutes so I forked and updated one of my favorite (but never published) Filament Group classics:
`flex-luthor` is a flexbox helper to configure layouts using a few CSS custom properties.
Source: https://github.com/zachleat/flex-luthor
Demo: https://flex-luthor.zachleat.dev/This utility predated Flexbox `gap` but this new version uses it internally. Automatic horizontal/vertical border separators are probably its coolest feature!