bluecherlab
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bluecherlab

Independent apps and hardware projects from Lower Saxony.

Apps · hardware · open source

Projects between
code and workbench.

bluecherlab develops apps and technical projects from real use cases—with the aim of solving concrete problems and creating genuine value for others.

Current projects

01 SleepTrack Audio Available 02 WakeFromFar Android available 03 Outlays Public demo 04 CarScreen Open source

Projects

Software, self-hosting, and hardware.

Independently developed, tested in everyday use, and built around a clear practical purpose.

01Live productAvailable

SleepTrack Audio

Finds the moment you fell asleep during an audiobook, locally through Health Connect.

Resume at the right point the next morning.

Android · Google Play

Open product site
02Mobile & homelabAndroid available

WakeFromFar

Wakes a NAS or home server through a self-hosted relay. A private tunnel such as Tailscale or WireGuard is required.

Family and friends can start the NAS themselves—safely and without asking the admin.

Android available · iOS in review · VPN required

View project
Outlays dashboard with synthetic sample data Synthetic demo
03Local-first financePublic demo

Outlays

Combines receipts, orders, OCR, and manual expenses in a local analytics workspace.

Spending, discounts, and recurring costs become understandable.

macOS · Windows · Self-hosted

View project
CarScreen mounted in a Seat Mii while driving 86 km/h · 52% SOC · 9°C
04Automotive hardwareOpen source

CarScreen

A round EV add-on display for the Seat Mii with live data and a custom mount.

State of charge, battery temperature, and power stay visible while driving.

ESP32-P4 · LVGL · OVMS

View project

Development notes

What I’m working on now.

All notes
SleepTrack Audio

Reliable detection, calmer listening.

Improving Health Connect analysis and the morning flow.

WakeFromFar

Android is live; iOS is in store review.

Evaluating early Android feedback, refining support, and following Apple's review.

Outlays

From broad prototype to a focused core.

Prioritising installation, backup, and review.

About Max

Personal questions become useful projects.

I develop bluecherlab independently in Lower Saxony. Most projects begin with something missing from my own everyday life and grow into a solution that may be useful to others as well.

GitHub profile
Working approach
  • Start with a problem I have encountered myself.
  • Keep the first useful version small.
  • Document limits and unfinished parts alongside the results.

Contact

Questions, ideas, or a similar setup?

Write to me at [email protected]. I read every message myself.