Ranked rather than gridded, because a prize at Cambridge and a website for a retreat centre are not peers. The first five are worth reading in full; the rest is an index.
The five worth reading in full
A case-theory stress test for litigators. Every allegation in a pleading mapped against the evidence bundle — supported, contradicted, gap, unaddressed — and every finding sourced back to the verbatim line. Modelling the dispute as a graph made weak claims and contradiction clusters visible where flat retrieval misses them. The judge abstains below its confidence threshold rather than guessing. On the challenge’s synthetic demo bundle it scored the pleaded case 28/100 and found 8 of 13 allegations contradicted by the claimant’s own evidence. Built with three others over a weekend; I handled the engine.
Europe’s largest generative-AI hackathon. I built and ran registration, the submission pipeline, automated mail and the public site, and coordinated $600k+ in API credits across the tool partners. The November 2025 edition opened at the American Film Festival in Wrocław; the 2026 Vienna edition is in preparation.
Bidirectional cross-attention between fMRI and sMRI for Autism Spectrum Disorder classification, across 871 ABIDE subjects and eleven Transformer architectures exploring different tokenisation strategies. Cross-attention reached 69.9% against a 63.5% single-modality baseline. The thesis spends as long on evaluation-methodology gaps in neuroimaging as it does on that result.
An open-source GNOME Shell extension bringing Hyprland-style dwindle (BSP) tiling to GNOME. Per-workspace window trees, animated focus borders, configurable gaps, and a native Gtk preferences UI, with GSettings schemas and keybinding conflict detection. One codebase covers GNOME 46–49 on both Wayland and X11. Sole maintainer.
Right-click any image and ask whether it was AI-generated. Reads Content Credentials, provenance signals and the metadata patterns generative tools leave behind — entirely in the browser — then produces a shareable report with JSON export. Deliberately honest about the answer: no evidence found is not the same as real.
Academic and applied studies
A study of whether chatbots can improve communication between local governments and citizens, run in Warsaw. I built the platform and co-authored the internal report; it ends in guidelines rather than a product.
Academic paper exploring doxastic logic (the logic of belief) as part of an Honours course on Formal Logic for AI. Examined the formalization of belief systems, epistemic logic connections, and applications in artificial intelligence reasoning.
Hackathon builds and side projects
A minimal, privacy-first web tool for quick image authenticity checks. Drop a photo to get a simple "forensics report" with metadata inspection and lightweight visual/pixel checks (e.g., compression/artifact hints and optional overlays). Everything runs locally in the browser. Deployed on Cloudflare Pages.
First place at the Legal Frontier Hackathon, built with a team. A tool that analyses a GitHub repository and reports where the codebase stands against the EU AI Act, turning a dense piece of regulation into concrete, per-repository findings. Next.js front-end with an n8n workflow backend driving the analysis.
Built for the ElevenLabs hackathon: practise a difficult conversation against a voice agent and get feedback afterwards.
An AI-assisted tool for posters and social posts — Cursor’s editing model pointed at CSS instead of code. A prototype, not a product.
When ChatGPT first appeared I jailbroke it as a joke and wrapped the result in a platform — chatbots programmed to behave badly, with accounts, credits and payments. Long since offline, and someone else has taken the domain.
Published articles and open notes
A public, searchable vault of my MSc Artificial Intelligence notes at the University of Amsterdam: lecture notes, concept wikis, and exercises for Reinforcement Learning, Information Retrieval, and Recommender Systems. Built with Quartz and published at notes.swasilewski.com so the notes are useful to other students, not just to me.
Published article in Polityka, one of Poland's leading newspapers, exploring the philosophical and ethical implications of AI personhood. Examined questions of robot consciousness, harm, and legal frameworks for non-human entities.
Co-founded and later served as Editor in Chief for a high school cultural magazine. Wrote provocative satirical articles while managing the website and editorial team, cultivating a unique voice that challenged cultural norms.
Sites built for organisations and small businesses
The organisation's site — mission, events, blog, publications, newsletter — plus the technical infrastructure behind it: domain, hosting, team email. Next.js rather than WordPress because I also maintain it.
WordPress site for an actor agency, built around talent portfolios for casting directors.
WordPress site for a marketing agency, built around their portfolio of past work.
WordPress site for a diversity and inclusion workshop programme.
WordPress site for a motion-simulation hardware company, with video integration for the product demos.
WordPress site for a 24-hour gym: class schedules, trainer profiles, membership options.
WordPress site for a narrative-analysis and semiotics consultancy. I still maintain it, and do their data analysis.
WordPress site promoting a book on organisational storytelling.
WordPress portfolio for a psychologist and author — books, workshops, services.
WordPress site for a youth alcohol-prevention programme, with downloadable resources for teachers.
WordPress portfolio for a Belgian journalist and crime novelist.
WordPress site for a family-run retreat venue near Kazimierz Dolny.