~/everythingthe whole site, one page
Everything on this site
The home page shows three things. This page shows all of them, in the order I'd read them.
What I do for a living
Data for communes ↗Luxembourg open data (Leneda, STATEC, data.public.lu) turned into dashboards, energy balances and simulators a council can read without a data team.Courses and training →Data, AI, observability, finance: courses at Université Catholique de Lille and Centrale Méditerranée, a guest lecture at the University of Luxembourg, one-day workshops for teams.AI and compliance consulting →Observability, AIOps and EU rules for regulated teams: DORA, NIS2, CSSF. Co-founder of LuxAIOps; I write about it in AGEFI Luxembourg.
Courses
Data Analytics for Business →Université Catholique de Lille, M2 International ManagementMachine Learning →Centrale Méditerranée, Option DDEFIEU strategy for data, in production →University of Luxembourg, guest lecturePython & SQL course ↗Hands-on, Codespaces-ready, on GitHub
Manuals, free to read
AI agents, explained step by step →How an AI agent works: the loop, MCP, Claude Code and Codex, with primary sources.The entrepreneur's toolkit →Economics for founders in 10 sections: ideas, selling, free university courses.The attention mechanism, step by step →Queries, keys, values, heads, positions, encoder, decoder: the maths with a worked example.Project management MOOC summaries →Verified summaries and quizzes for the French-language project management MOOC.Learn productivity →Planning, learning and focus: only methods with published evidence, and the myths to drop.
Sitraka Labs: free tools
Work & career
Telework Day Counter →Count your 34 cross-border telework days the way each tax office counts them.Work & Career →Save job offers, spot duplicates, score the fit and track your applications.RIASEC interest test →O*NET Mini Interest Profiler: 30 statements, your Holland code scored in your browser.Technical interview prep →Coding rounds, a 7-step system design method with timed drills, the leadership round.Job offers →Job fairs in Luxembourg →Job sites in Luxembourg →
Plan & learn
Critical Path Calculator →Enter your tasks, get the critical path, total float and a Gantt chart.Learn productivity →Planning, learning and focus: only methods with published evidence, and the myths to drop.Project management MOOC summaries →Verified summaries and quizzes for the French-language project management MOOC.Worked example: forward and backward pass →AI agents, explained step by step →How an AI agent works: the loop, MCP, Claude Code and Codex, with primary sources.The attention mechanism, step by step →Queries, keys, values, heads, positions, encoder, decoder: the maths with a worked example.The entrepreneur's toolkit →Economics for founders in 10 sections: ideas, selling, free university courses.Study plan checklist →Wedding checklist →
Regulation & compliance
Faith & reflection
Sport & health
Open data
France budget in figures →Deficit, debt, pensions and climate, from official data.Doing business in France →Business start-ups, failures and survival.Solar power in Luxembourg ↗Installed solar capacity, from data.public.lu.Is solar worth it for your home in Luxembourg? →Next wage indexation ↗A forecast of the next index tranche in Luxembourg.Luxembourg public finances ↗Luxembourg's public finances, in figures.Luxembourg business demography ↗Start-ups, survival and bankruptcies, from STATEC.Carte sanitaire 2025 ↗Luxembourg's health map, made readable.June 2026 heatwave ↗Heat in Luxembourg, from Landsat satellite data.Luxembourg IT sector ↗Firms, jobs, salaries and AI adoption, from STATEC.India and Luxembourg in numbers ↗People, trade and investment, from official statistics.
All 19 Sitraka Labs tools, by need →
Games
Made for a short break between two tasks. No account, works offline.
Rat Race →A T-Rex style runner, worker edition: 65 cities and a cross-border commuter level from Luxembourg to Thionville.MÉTIER →TIRAGE →SORTIE →
The Luxembourg agenda
By theme
This weekendTodayTomorrowFamilyLuxembourg CityTrierTechFinanceNetworkingApéroCultureDanceMuseumsRainy dayHalloweenCarnivalSaint NicholasNew Year's EveIndian festivalsSchool holidaysFlea marketsFreeStartupSportTrailTriathlonMarathonPopular walksCyclingMotorsportFrontier in TechChristmas marketsRaces 2027
Articles and essays
European digital sovereignty: why Luxembourg cannot do without it ↗AGEFI Luxembourg, November 2025The end of the euphoria, the start of the debt? AI against balance sheets and regulators ↗AGEFI Luxembourg, July 2026Digital sovereignty and artificial intelligence: two analyses in AGEFI Luxembourg ↗Communauté des Français du Luxembourg, December 2025What AI really asks of company leaders: data governance, organisation, execution ↗Communauté des Français du Luxembourg, June 2026Beyond RAG: the road to production-ready agentic AI ↗MediumEliza, the first chatbot (1964), and a lesson beyond the hype ↗MediumAIX by IBM: still relevant in 2025? Enterprise-grade UNIX in practice ↗Medium
What I read to follow Luxembourg
€300M and a 10-point plan to scale Luxembourg startups
Ministers Lex Delles and Gilles Roth unveiled a €300M financing scheme (via SNCI, over five years) targeting deeptech, fintech, healthtech, cybersecurity, space and sustainable tech, on top of the earlier €280M Future Fund.
Luxembourg Trade & Invest ↗
Silicon Luxembourg ↗Tech and startup news: events, funding, people.Paperjam ↗Business, finance & politics: the reference newsroom.Chronicle.lu ↗English-language news across the whole country.ITnation ↗IT & digital professionals: deeper industry angles.
On their own websites
LuxAIOps ↗LuxAIOps, the EU-hosted observability company I co-foundedLaTeXciThe tools Overleaf forgot: BibTeX suite, converters, 28 templates.Pompier QuizExam prep for francophone firefighters: 11,500 sourced questions.EcoFinLearnLearn economics & finance, interactively.SORTIEThirteen masks. Five floors. One way out. A top-down action game, offline, no account.MÉTIERFive ways to make a living. One life at a time. A cosy career RPG, offline, no account.TIRAGELuxembourg in cards. One pack a day. A 600-card album, offline, no account.