RYUN Engineering & Research
Blog & Engineering Notes
Things we built, measured, or got wrong. Written by the developer, dated, and updated in place when code or benchmarks change.
Articles (2)
#Anki·9 min
Readlang and Lute Alternative: Free In-Browser Video and Transcript Immersion
Readlang caps multi-word phrase lookups on free tiers, while Lute requires complex local Python server configurations. Learn how Nativra provides a 100% free, zero-setup alternative for in-browser video and transcript immersion with unlimited phrase lookups and synchronized Read Along.
Oct 24, 2026Read
·9 min
FluentU Alternative: Why Video Language Immersion Does Not Need a $30/Month Paywall
FluentU locks curated video clips and interactive subtitles behind a $29.99 monthly paywall. Learn how Nativra provides a 100% free, zero-signup alternative that turns any authentic YouTube video into a language immersion lesson with dual synchronized subtitles and Anki export.
Oct 23, 2026Read