Postlet – Tiny static blog generator with plugins and themes support
Under 1000 lines with optional vector embeddings for related posts.

1kloc framework with React-like API; claim of outperforming React lacks evidence and real-world testing.
Developers building lightweight single-page apps without build tooling; jQuery users migrating to modern patterns.
Preact · htmx · Vue.js
vertex.js is a single, self-contained file with no build step and no dependencies.
Also exhibits the curious quality of being faster than over a decade of engineering at Facebook in some cases: https://files.catbox.moe/sqei0d.png
Under 1000 lines with optional vector embeddings for related posts.
Zero-build reactive framework, but the function-based JSX alternative feels verbose.
Italian syntax is charming but limits audience to Italian speakers specifically.
Yet another htmx/LiveView alternative in an already crowded server-UI space.
Pure-JS text layout at 0.03ms beats getBoundingClientRect reflow hacks for accordions.
Fixes malformed paste content that bracketed paste mode doesn't actually solve.