# JelleBuilds

> JelleBuilds by Jelle Hoogeveen — personal lab for software experiments, AI prototypes, kids' games (JelleGames), utility apps and a lab journal on building in public.

JelleBuilds is a personal site by Jelle Hoogeveen (Netherlands). He builds small apps, tools and experiments to learn, improve and have fun — and writes about what he discovers along the way.

## About the author

- Name: Jelle Hoogeveen
- Site: https://www.jellebuilds.com
- About: https://www.jellebuilds.com/about
- GitHub: https://github.com/jellebuilds
- LinkedIn: https://www.linkedin.com/in/jelle-hoogeveen-840b4013/

## Main pages

- [Home](https://www.jellebuilds.com/)
- [Experiments](https://www.jellebuilds.com/#experiments)
- [Lab timeline](https://www.jellebuilds.com/lab)
- [Lab Journal](https://www.jellebuilds.com/writing)
- [About](https://www.jellebuilds.com/about)
- [JelleOS dashboard](https://www.jellebuilds.com/jelleos)

## Experiments

- [JelleBuilds](https://www.jellebuilds.com/experiments/jellebuilds): The place where it all comes together. I build and improve JelleBuilds step by step, learning about Next.js, design and shipping along the way.
- [Jello](https://www.jellebuilds.com/experiments/jello): A playful kanban experiment about dragging, dropping and interactions that feel smooth. Now in JelleBuilds style with a { } logo.
- [Open Jello app](https://www.jellebuilds.com/jello)
- [JelleRunLog](https://www.jellebuilds.com/experiments/runlog): Plan your goal race, pick training days and log distance and pace per session. Live at /runlog — with rhythm hints based on your progress.
- [Open JelleRunLog app](https://www.jellebuilds.com/runlog)
- [JellePantry](https://www.jellebuilds.com/experiments/pantry): The spice drawer as an app: tap a jar to track stock. Now in JelleBuilds style with a { jar } logo.
- [Open JellePantry app](https://www.jellebuilds.com/pantry)
- [JelleChores](https://www.jellebuilds.com/experiments/chores): Place household tasks in a 2×2 matrix: quick wins, major chores, fill-ins and thankless tasks.
- [Open JelleChores app](https://www.jellebuilds.com/chores)
- [JelleDesignSystem](https://www.jellebuilds.com/experiments/designsystem): Colours, typography, logo pattern and components — explained with visual references.
- [JelleOS](https://www.jellebuilds.com/experiments/jelleos): Compact dashboard: Today, bridges, widgets and backup — local-first via localStorage.
- [Open JelleOS app](https://www.jellebuilds.com/jelleos)
- [Memory Map](https://www.jellebuilds.com/experiments/memorymap): Moments, photos and documents on a personal timeline — from new job to marathon.
- [Open Memory Map app](https://www.jellebuilds.com/memorymap)
- [JelleRescue](https://www.jellebuilds.com/experiments/rescue): Four worlds, illustrated title screen and animal roster — continue remembers your team.
- [Open JelleRescue app](https://www.jellebuilds.com/rescue)
- [Rady's Avontuur](https://www.jellebuilds.com/experiments/radijs): Pixel adventure with world map, four lands (incl. Bee Valley), Rady's home and parallax backgrounds.
- [Open Rady's Avontuur app](https://www.jellebuilds.com/radijs)
- [JelleGames](https://www.jellebuilds.com/experiments/jellegames): Two family games at /games — illustrated title screens, In progress badge and Continue.
- [Open JelleGames app](https://www.jellebuilds.com/games)
- [JelleSpark](https://www.jellebuilds.com/experiments/spark): An ideas board for quick sparks. Pin, archive and send to Jello, Chores or Memory Map.
- [Open JelleSpark app](https://www.jellebuilds.com/spark)
- [JelleWeight](https://www.jellebuilds.com/experiments/weight): Set start and goal weight, height and timeline. Log daily weigh-ins — with BMI, progress and a trend line at /weight. Live, with a JelleOS widget and link to RunLog.
- [Open JelleWeight app](https://www.jellebuilds.com/weight)

## Lab Journal posts (English)

- [Campfires, parallax and no more black screens](https://www.jellebuilds.com/writing/21-juli-games-atmosfeer): An evening on JelleGames: Animal Rescue got pixel atmosphere, camp between worlds and music; Rady’s got parallax platforms and a fix for the black level screen.
- [Kids’ feedback, SEO and a tighter hub](https://www.jellebuilds.com/writing/20-juli-seo-polish-hub): After the morning playtest: JSON-LD on app pages, real sitemap dates, clearer progress on /games, mobile Rescue polish and a tighter JelleOS dashboard.
- [Spark talks back — and Today picks real priority](https://www.jellebuilds.com/writing/19-juli-spark-sync-en-vandaag): Done in Jello auto-archives your spark; restore moves the task back. The Today panel now picks explicitly: session → deadline → game → pinned spark.
- [JelleOS becomes home — plus Spark and games on the dashboard](https://www.jellebuilds.com/writing/19-juli-jelleos-thuis): The homepage now links to /jelleos. Today panel, lab feed, continue actions and Spark/games widgets make the dashboard the real entry point.
- [JelleGames hub, branding and polish](https://www.jellebuilds.com/writing/18-juli-games-polish-hub-ci): Launcher with progress, shared game chrome, Rescue food by diet, graphics pass, a11y, deep links, CI and refreshed screenshots.
- [Finishing bridges, week view and a mushroom](https://www.jellebuilds.com/writing/18-juli-bridges-weekoverzicht-en-meer): Two-way Jello bridges for Pantry and RunLog, JelleOS week overview, RunLog → Memory Map, plus Rijdijze meets a mushroom man.
- [Memory Map, bridges and site infra — a busy day](https://www.jellebuilds.com/writing/17-juli-memory-map-en-meer): Memory Map and Radijs by day; lab timeline, two-way Jello bridges, bilingual RSS and a11y by evening — plus a Vercel 500 lesson.
- [JelleOS — from idea to dashboard (plus an evening of polish)](https://www.jellebuilds.com/writing/jelleos-visie-en-polish): While I ship MVPs back to back, the idea of apps that talk to each other grows. That same evening JelleOS went live — plus contrast, a portrait and Next.js bugs.
- [An evening full of ships: favicon, apps and lessons learned](https://www.jellebuilds.com/writing/een-dag-vol-ships): What happened when I spent an evening making a favicon, integrating three apps and discovering that shipping is more than just writing code.
- [JelleRunLog: logging my runs to actually improve](https://www.jellebuilds.com/writing/hardloopjes-bijhouden): Notes from JelleRunLog, the tool I use to log my running sessions and train towards a goal.
- [Jello: my first working prototype](https://www.jellebuilds.com/writing/jello-eerste-prototype): What I learned about dragging, dropping and interactions that feel good while building a kanban board for fun.
- [Why I started JelleBuilds](https://www.jellebuilds.com/writing/waarom-jellebuilds): A little corner of the internet to build in public, learn out loud and share my experiments.

## Lab Journal posts (Dutch)

- [Kampvuur, parallax en geen zwart scherm meer](https://www.jellebuilds.com/writing/21-juli-games-atmosfeer): Avond aan de JelleGames: Dierenredders kreeg pixel-sfeer, kamp tussen werelden en muziek; Rady’s kreeg parallax-platforms en een fix voor het zwarte level-scherm.
- [Kinderfeedback, SEO en een strakkere hub](https://www.jellebuilds.com/writing/20-juli-seo-polish-hub): Na de ochtend-playtest: JSON-LD op app-pagina’s, echte sitemap-datums, duidelijkere voortgang op /games, mobiel Rescue-polish en een compacter JelleOS-dashboard.
- [Spark praat terug — en Vandaag kiest echt prioriteit](https://www.jellebuilds.com/writing/19-juli-spark-sync-en-vandaag): Done in Jello archiveert je flits automatisch; herstel zet de taak terug. Het Vandaag-panel kiest nu expliciet: training → deadline → game → gepinde flits.
- [JelleOS wordt thuis — plus Spark en games op het dashboard](https://www.jellebuilds.com/writing/19-juli-jelleos-thuis): De homepage linkt nu naar /jelleos. Vandaag-panel, lab feed, doorgaan-met-acties en widgets voor Spark en games maken het dashboard het echte startpunt.
- [JelleGames-hub, branding en polish](https://www.jellebuilds.com/writing/18-juli-games-polish-hub-ci): Launcher met voortgang, gedeelde game-chrome, Rescue voeding per dieet, graphics-pass, a11y, deep links, CI en vernieuwde screenshots.
- [Bridges afronden, weekoverzicht en een paddenstoel](https://www.jellebuilds.com/writing/18-juli-bridges-weekoverzicht-en-meer): Tweerichtings Jello-bridges voor Pantry en RunLog, JelleOS weekoverzicht, RunLog → Memory Map, plus Rijdijze ontmoet een paddenstoelmannetje.
- [Memory Map, bridges en site-infra — een drukke dag](https://www.jellebuilds.com/writing/17-juli-memory-map-en-meer): Memory Map en Radijs overdag; 's avonds lab-tijdlijn, tweerichtings Jello-bridges, tweetalige RSS, a11y — plus een Vercel-500-les.
- [JelleOS — van idee naar dashboard (plus een avond polish)](https://www.jellebuilds.com/writing/jelleos-visie-en-polish): Terwijl ik MVPs achter elkaar ship, groeit het idee van apps die met elkaar praten. Dezelfde avond kwam JelleOS live — en contrast, portret en Next.js-bugs kregen aandacht.
- [Een avond vol ships: favicon, apps en geleerde lessen](https://www.jellebuilds.com/writing/een-dag-vol-ships): Wat er gebeurde toen ik op één avond een favicon maakte, drie apps integreerde en ontdekte dat publiceren meer is dan alleen code schrijven.
- [JelleRunLog: mijn hardloopjes bijhouden om beter te worden](https://www.jellebuilds.com/writing/hardloopjes-bijhouden): Aantekeningen bij JelleRunLog, de tool waarmee ik mijn hardloopsessies vastleg en gericht toewerk naar een doel.
- [Jello: mijn eerste werkende prototype](https://www.jellebuilds.com/writing/jello-eerste-prototype): Wat ik leerde over slepen, neerzetten en interacties die goed aanvoelen, terwijl ik voor de lol een kanban-bord bouwde.
- [Waarom ik met JelleBuilds ben begonnen](https://www.jellebuilds.com/writing/waarom-jellebuilds): Een eigen hoekje op het internet om in het openbaar te bouwen, hardop te leren en mijn experimenten te delen.

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