Attributions

Aprelendo was built using the following free and open source tools:

• Nginx, by Igor Sysoev
• PHP, by The PHP Group
• jQuery, by the jQuery Foundation
• Bootstrap, by Bootstrap Team
• Hugging Face, for providing access to machine learning models used to power Aprelendo's AI capabilities. The Qwen3-VL-8B instruct model by Alibaba is used to power Lingobot.
• Readability, by Mozilla (used to fetch texts from external web sources)
• DOMPurify, by cure53 (used for security before fetching texts from external web sources)
• Subtitles parser, by Anton Bazhenov (used to parse offline video subtitles).
• epub-js, by Intity (used to render epub files)
• Chart.js, by Chart.js Team (used to render statistics charts)

Other attributions:

• Matomo, by Matomo (web analytics platform that provides privacy-focused tracking)
• Bootstrap Icons, by Bootstrap Team
• Flag icons designed by HatScripts
• Frequency lists by Hermit Dave
• Theme based on Solid, by Blacktie
• Wallpaper by JD X from Unsplash