multicards is almost purely client side interactivity. I STILL use htmx for a number of reasons:

- No JSON serialization: HTMX sends form data natively no JSON.stringify() needed - Less JavaScript: Declarative hx-* attributes replace imperative fetch code. in my world declarative always wins. - Automatic headers: HTMX handles X-User-Id and other headers configured globally - Built-in error handling: hx-on::error instead of .catch() chains - Swapping flexibility: Can show success/error feedback via hx-swap without custom JS - Request indicators: Free loading states with hx-indicator - Debugging: HTMX events visible in browser devtools; fetch requires console.log

and most all: performance. multicardz goes like stink. 100/100 lighthouse scores, First Contentful Paint 0.4 s, Largest Contentful Paint 0.5 s, Total Blocking Time 0 ms, Cumulative Layout Shift 0, Speed Index, 0.5 s

still prerelease, but cautiously hope to go general availability by and of year.