Learning Projects
Platforms and tools for language learning, vocabulary training and cultural knowledge — built to take learners from beginner to confident.
The learning applications in this collection grew from a personal relationship with language learning as a genuinely difficult problem. LëtzLearn was built because Luxembourgish — one of only three official languages of Luxembourg — has almost no quality structured learning resources available in English or French; the platform is the course Lothringer's founder wished had existed.
Adages and French Verbs were built from the same instinct: the best way to rediscover proverbs is a purpose-built collection tool rather than a notes app, and the best way to practise verb conjugations is frequent, low-friction repetition rather than a textbook. All three are content-rich, user-account-capable web applications — together they demonstrate Lothringer's ability to build subscription-ready SaaS platforms with user management, progress tracking and transactional email, the same capabilities that underpin most B2B SaaS products. Source code, architecture decisions and lessons learned are available on request.
| Project | Platform | Summary |
|---|---|---|
| LëtzLearn | Web | Subscription SaaS platform for learning Luxembourgish, with mastery-based progression, quizzes and a CEFR-level assessment. |
| Adages | Web | Full-stack platform for collecting and sharing proverbs and quotes, with user management, search and a REST API backend. |
| French Verbs | Web | Interactive French verb conjugation trainer with tense coverage, instant feedback and progress tracking. |
LëtzLearn
LëtzLearn is a structured online course platform for learning Luxembourgish — one of the three official languages of Luxembourg. Built as a subscription SaaS product, it takes learners through 12 themed units and 36 lessons, from greetings and everyday vocabulary through to grammar, culture and a full CEFR-level assessment.
Each lesson follows a consistent format: vocabulary flashcards, key phrases, grammar notes and a quiz. Lessons unlock sequentially — learners must score 10/10 to progress, with unlimited retakes — so the platform enforces genuine mastery rather than passive completion.
- 12 units, 36 lessons covering vocabulary, phrases, grammar, culture and geography
- Mastery-based progression — lessons unlock only after a perfect quiz score
- Personal dictionary built automatically from completed lessons, with live search
- 50-question Big Test with automatic CEFR level mapping (A1–C1)
- Transactional milestone emails to celebrate progress and re-engage learners
- Subscription model (Stripe-ready) with free tier for Unit 1
- Bilingual UI in English and French; Node.js, Express, PostgreSQL, Azure
Adages
Adages is a full-stack web application for collecting, sharing and discovering adages, proverbs and quotes from around the world. The project was taken from initial concept through to a live, publicly accessible product — demonstrating end-to-end delivery capability across design, build, testing and deployment.
The application supports full user management including registration, email verification, admin controls, password reset flows and role-based access control. Users can submit their own adages, browse and search the collection, and interact with content shared by others.
- RESTful API built with Node.js and Express, with JSON responses consumed by the web client
- Responsive web interface built with server-side rendering and Bootstrap 5
- Full user management: registration, email verification, admin controls, password reset and role-based access
- End-to-end delivery from concept to live site — design, build, testing and deployment
- Hosted on Azure with automated deployment pipeline
French Verbs
French Verbs is an interactive language learning tool designed to help learners of all levels practise French verb conjugations. The application provides structured exercises with immediate feedback, making it suitable for both self-directed learners and classroom supplementation.
The tool covers a wide range of tenses and verb groups, with progress tracking so learners can monitor their improvement over time. The interface is designed to be clean, distraction-free and accessible on any device.
- Interactive conjugation exercises with instant, contextual feedback on each answer
- Coverage of all major tenses — present, past, future, subjunctive and more — across regular and irregular verb groups
- Progress tracking and scoring to help learners identify weak areas and measure improvement
- Clean, accessible UI designed for focus — no distractions, works equally well on mobile or desktop
- Built and deployed as a standalone web application on Azure
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