Porto, Portugal · Online since 2015
Software I build and maintain, open-source work, technical notes, talks and books. This is my home on the web.
Software that is understandable,
maintainable and useful.
From backend architecture
to the systems around it.
Open source, technical writing,
teaching and mentoring.
Selected work
SoftwareI worked across GNU social v2 and led the v3 effort, modernising a long-lived PHP codebase while preserving the interoperability and community practices that make federated software useful. The work was funded in part through the EU Horizon 2020 NGI0 Discovery Fund.
ResearchMy PhD work explores multi-application spatial augmented reality, with C++ as the main implementation language.
SoftwareA focused weekly time and task tracker with goals, streaks, manual corrections, a live timer, reports, exports and team workspaces. The current launch has no billing, paywall or trial countdown.
SoftwareA real-time eyewear try-on built from one TypeScript codebase. MediaPipe landmarks drive frame position and perspective while face-aware occlusion keeps the temple arms behind the head.
ResearchAn open-source toolkit for exploratory literature mapping through citation networks. A Python pipeline turns scholarly metadata into inspectable graphs and browser-ready datasets; a static explorer keeps local files in the browser.
ResearchSpectaria applies my projection-based interaction work to museums and cultural venues through reusable spatial installations, web-based authoring and operation, and privacy-aware visitor interaction.
A little about me
I enjoy taking a problem that is still a little vague, making the trade-offs explicit and leaving behind software that another person can understand and operate. PHP, Symfony, SQL and Linux are the tools I know most deeply, but the common thread is careful engineering rather than a particular stack.
My longer record includes GNU social, internal operational tools, self-hosted services, dependable and spatial systems, teaching, technical writing and a few independent products.
Experience
Open-source platforms, internal tools, infrastructure, applied research and teaching all support the same professional story: making complex technical systems understandable, maintainable and useful.
Led GNU social v3 across PHP/Symfony architecture, ActivityPub interoperability, accessibility, releases and contributor mentoring.
Built internal tools from business constraints through data models, backend logic, admin workflows, reporting and documentation.
Operate Linux services with Nginx, Docker, databases, encrypted storage, backups, monitoring and recovery procedures.
How I work
I prefer small milestones, direct communication and maintainable systems over clever one-offs.
Move from unclear requirements to explicit trade-offs, implementation, documentation and an operable result.
Make architecture, risks and assumptions visible so the software remains understandable after handover.
Treat deployment, backups, monitoring, accessibility and recovery as part of the product.
Use mentoring and technical communication to reduce future coordination cost and improve quality.
From the logbook
A text version of my one-hour DCE'23 workshop on Git for PhD students, researchers, and developers.
A retrospective on coordinating INVICTUS’s software and computer engineering work: telemetry, simulation, dependable systems and the knowledge a student team leaves behin…
An introduction to dependable computing: how to design software and embedded systems that remain trustworthy under faults, timing constraints, degraded conditions, and re…
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