Rangi.dev - Hi there
Don't ask me what this page is for, I don't even know myself. Currently it's just used to share toe tools I make that i felt like creating - maybe you might find use in them. Other then that this site is also used to collect stuff, "what?" you may ask. To that I answer whatever walks across my way and is to my heart's content (oder so). If you have any comment, thought, addition or desire to talk to someone - feel free to contact me via rangi@fridi.de
Stuff I've been doing
Some times it's nice to slow down and stop always wandering "what is next, how do i proceed, will it all work out?" but do the opposite and look back, look at what you've done and what you've created. IDK if that statement true or meaningful, i just pulled it out of my arse. Anyway to not get too existential, here is a tiny bit of proof i existed.
| 2026-02-11 | - Created a tool for viewing location logging data to see where you traveled to |
| 2026-02-10 | - Added an Art Gallery to the website. |
| 2025-04-01 | - Wrote a suite of programs to replace garmin services for fitnes watches(Detailed track analysis, Location Heatmap, GPX Mapping). |
| 2024-12-06 | - Wrote a program to get a quick graph overview of a bunch of lecture slides. |
| 2024-10-22 | - Wrote a Slime Simulation based on a paper about bacterial growth. |
| 2023-10-14 | - Started studying Aerospace at TUM |
Traveling
Powered by the wonderful tool i made: GPX Logging Analysis - International Travel (i desperately need to get better at naming things)
The ideas is to link the trips to pictures or something idk, if i find the time to do that.
2026
- Brussels - Attending the FOSDEM conference.
- Japan - Visiting family and friends.
2025
- Rome and Naples - Visiting a friend doing a semester abroad.
- Paris - A couple of friends ware visiting germany and realized that they had two travel days left on their interrail pass so i spontaneously also got a one day pass and guided them on a day trip to Paris with. We actually managed to see a bunch Eiffel Tower, palace, Notre Dame, lover (from the outside) and a bunch of cafes even with the limited time.
- Switzerland - Visiting friends of family.
- Poland - Visiting the hometown of a friend.
2024
- Czech Republic - Trip with friends.
- France - No idea why i was in France for a day.
- Austria - No idea why i was in France for a day.
- Thailand - 20 hour transfer time between two flights to get out of the Airport, and attend the Songkran Festival.
- Japan - Visiting family and friends.
2023
- UK - Visiting my sisters boarding school while she is doing a year abroad.
- France - Again i have no idea, how i ended up in France xd.
- Scandinavia (Norway, Sweden and Denmark) - After high school i did a 3-Week long interrail trip threw the Scandinavian nations mostly staying along the Norwegian coast backpacking with a tent and supply for self-sustained hiking.
Sports
| 2025-10-16 | - Cycled 45 km from Mering to Garching on a fixed gear (route) |
| 2025-09-23 | - Cycled 80 km from Aalen to Stuttgart on a fixed gear (route) |
| 2025-08-06 | - Cycled 90 km from Stuttgart to Karlsruhe on a fixed gear (route) |
What does this site have to offer?
Art
Go check out my art gallery.
"Don't follow your dreams, follow your tools." - Hank Green
Location and Track Data stuff
| GPX Logging Analysis for International Travel |
link |
| Sports focussed bulk analysis tool for .gpx and .fit files |
link |
| Heatmapping tool for .gpx files to visualize where you've been for how long |
link |
Music and Audio stuff
| (Unfinished) tool to explore chord progressions in an interactive graph. |
link |
| Piano keyboard with 3 oscillators to experiment with simple sound design |
link |
| Sine Oscilloscope sound design tool |
link |
| Spectrogram analysis with note detection of real time mic feed |
link |
| └─ of an input sound file |
link |
Math and Science
Productivity and other Utility
| Stopwatch that saves the start time in the URL to make it easily shareable |
link |
| Timer that saves the end time in the URL to make it easily shareable |
link |
| Clock (click to full screen) |
minimal, scientific |
| Find your address |
link
|
| A collection of semi-organized useful resources |
link
|
Guides
Guides are tools right? Are guides tools? Was auch immer...
| Introduction to PGP Encryption |
link |