Farsight
– PresentAnalyze your League of Legends matches and track your performance.
Hi, I'm Seweryn.
Software Engineer Apprentice @ NokiaStudent @ ESIEA Paris
I like building a lot of things.
Have a look around my interactive portfolio.
DesCode
–Learn programming on your phone.
Vibedle
Guess which AI model generated a website.
L'Académicien
–The platform to improve your French language skills.
ParkTui
–TUI parking lot management simulator.
Farsight
- about
- Analyze your League of Legends matches and track your performance.
- status
- In progress
- type
- Personal
- platform
- Web, Desktop
- range
- → Present (3+ months)
- Stack
- TanStack Start, React, TypeScript, Effect, Rust, Tailwind
- tools
- Convex, Cloudflare
- repo
- sevnx/kairos
- site
- farsight.ink
Description
Farsight is a League of Legends analysis tool for reviewing ranked matches and tracking performance across a season. Players can browse their match history, filter stats by champion, role, or matchup, and compare their performance with the opponents they faced.
Using Riot’s match and timeline data, it connects fights and objectives to gold swings and shows how leads formed and where matches turned. Detected strengths and mistakes link to the numbers and timestamps behind them, with Map Replay for inspecting those moments. Players can also add notes to their matches and track what they want to improve.
Built with TanStack Start, React, TypeScript, Effect, and Rust. Deployed on Cloudflare Workers and Convex.
DesCode
- about
- Learn programming on your phone.
- status
- Completed
- type
- Academic
- platform
- Web, Mobile
- range
- → (9 months)
- Stack
- React Native, React, NextJS, TypeScript, Rust
- tools
- PostgreSQL, Docker
- repo
- desforgehub/descode
Description
DesCode is a mobile app for learning programming through short lessons and interactive exercises. Learners can follow a campaign, study a language or concept, or work through a curated learning path. Exercises include quizzes, code completion, code writing, and a simulated shell.
I worked on the mobile app, admin panel, Rust backend, and deployment during a team project in the last year of my Computer Science bachelor’s.
Responsibilities
| Frontend | Backend | Infra |
|---|---|---|
|
|
|
Vibedle
- about
- Guess which AI model generated a website.
- status
- In production
- type
- Personal
- platform
- Web
- range
- (1 day)
- Stack
- NextJS, React, TypeScript, Tailwind
- tools
- Convex
- repo
- sevnx/vibedle
- site
- vibedle.sevnx.dev
Description
Vibedle is a game where you browse an AI-generated website and guess which model made it, including whether it used a frontend skill. Each game has five rounds and up to three guesses per site, followed by a score recap.
I built it with NextJS, React, and Convex. Games are saved to the player’s account, so a refresh returns them to their current round.
L'Académicien
- about
- The platform to improve your French language skills.
- status
- Completed
- type
- Academic
- platform
- Web
- range
- → (3 months)
- Stack
- React, TypeScript, PHP
- tools
- MySQL
Description
L’Académicien is a web platform for young students to practise French through quizzes, explanations, and examples. I worked on the exercise system and content management during a university team project in partnership with the Académie française.
I built the quiz and content management interfaces in React and TypeScript, with PHP answer validation and progress tracking backed by MySQL. We presented our work to representatives of the Académie française; the platform was still unfinished at handover.
Les étudiants de la licence 3 MIAGE en partenariat avec l'Académie française (iutparis-seine.u-paris.fr)
The university's account of the project and student visit to the Académie française.
ParkTui
- about
- TUI parking lot management simulator.
- status
- Completed
- type
- Academic
- platform
- TUI
- range
- → (3 months)
- Stack
- C
- repo
- sevnx/parktui
Description
ParkTui is a parking lot management game written in C for an academic team project. Players manage vehicle traffic, collect revenue, buy upgrades, and respond to events while balancing money, satisfaction, and prestige.
The game has several difficulty levels, custom maps, and a manual mode where players drive vehicles with the arrow keys.
I built the application state machine and game loop, vehicle movement and collision checks, and manual driving controls. I also wrote the arena allocator and terminal view stack, with memory cleanup for overlays and redraws limited to changed map cells.
Present13+ months
Software Engineer @ Nokia
Nozay, France
Apprenticeship
C
C++
Modernizing an embedded software component in C++ to support next-generation Nokia products.
Key responsibilities
- Designing an architecture with a clear separation of responsibilities.
- Incrementally migrating legacy C/C++ code into the new architecture and updating callers.
- Simplifying configuration for different hardware setups.
- Improving testability through abstractions that facilitate mocking and stubbing.
- Prototyped the integration of functional tests that verify the component’s behavior through its API on target hardware.
20 months
Software Developer @ Sirius Space Services
Nanterre, France
Apprenticeship
Rust
GitLab
Worked on various internal software tools to support and assist other developers.
Validation & Verification Tool
- Contributed to a tool for validation and verification of software components in a distributed system, that use DDS (Data Distribution Service) as their middleware.
- Extended test scenarios supported by the tool, covering more use cases.
- Implemented QoL features, making the tool more user-friendly.
- Prototyped an integration with the CI/CD pipeline, automating the process, allowing to catch regressions early.
Bench software configuration tool
- Rewrote the prototype of the tool from Python to Rust, to align with other software.
- Established an architecture to improve modularity, separation of concerns, and error handling.
- Prototyped a GUI for the tool, using Tauri, to facilitate its usage by non-technical users.
I build web apps and tools, often for things I'm interested in myself. I like working on the whole thing, including how it runs.
- Frontend
- ReactTanStack StartTailwindEffectAstro
- Backend
- TypeScriptRust
- Systems
- CC++Rust
- Database
- ConvexPostgreSQL
- Apps
- Rust
- Deployment
- VPSCloudflare
- Tools
- DockerGit
- AI
- CodexClaude CodeT3 Code
Present13+ months
Master's in Engineering @ ESIEA Paris
Paris, FranceProjectsParkTui
2 years
Bachelors in Computer Science @ IUT de Paris - Rives de Seine
Paris, France- Organized and taught exam preparation sessions for same-year and younger students
- Part of the student office of the CS department (2023-2024)
- Participated in the "Nuit de l'Informatique" hackathon (2022, 2023, 2024)
ProjectsDesCodeL'Académicien
Blog
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