Astro [0] a relatively new static site generator. It solves all of the issues I've had with SSG's that feel heavy, like Gatsby.

Astro is only as complex as you make it. It lets you write JSX-like syntax that compiles to static HTML. I use it for my personal site.

[0]: https://astro.build/

[1]: https://sjer.red/

[1]: (source code) https://github.com/shepherdjerred/sjer.red