Shipping a script-based language filter and lightweight onboarding tour

I recently shipped two small but meaningful improvements on my site, Rankiwiki, based on feedback around usability and clarity.

First, I added a script-based language filter for the homepage.
Instead of treating language as “translation,” posts are grouped by writing system (A / 文 / 한).
Titles are auto-detected and tagged (Korean, Chinese, Japanese, Thai, Hindi, Russian, Arabic, or Western alphabet), and users can instantly filter the feed or reload with language-specific URLs.
The goal was to reduce visual overload on a multilingual feed without breaking layout or pagination.

Second, I built a lightweight onboarding tour.
It supports multiple languages, and doesn’t rely on heavy external libraries.
Everything is selector-based, customizable, and designed to feel like part of the product rather than a plugin overlay.

Both changes came from the same question:
“How can I make a complex, multilingual site easier to understand without adding more UI clutter?”

Would love to hear how others approach multilingual navigation or onboarding on content-heavy products.