distributed-timer

A simple, distributed timer, originally designed for bouldering for competitions.

Features

• Create timers with custom sequences
• Indication sound at one minute and a countdown at five seconds
• Show the timer on many devices
• Time is synced accurately even when the clock of the devices is out of sync
• set custom background colors
• change color or labels without restarting the timer
• start the timer at a scheduled point of time in the future
• prevent a device showing the time from going to sleep

Screenshots

Usage

You can use our publicly hosted instance free of charge: timer.itsblue.de

If you'd like to self-host, you can also use docker:

• 1. install docker and docker-compose on your system (follow the official guide)
• 2. create the folder /opt/distributed-timer
• 3. create the file /opt/distributed-timer/docker-compose.yml with this content:

  services:
    timer:
      image: ghcr.io/dorianim/distributed-timer:latest
      environment:
        JWT_KEY: some-random-string
        REDIS_STRING: "redis://:@redis/0"
      ports:
        - 3000:3000
      depends_on:
        - redis
  
    redis:
      image: docker.io/redis
      volumes:
        - ./redis-data:/data

  Make sure, to replace the JWT_KEY.

• 4. start the container: docker-compose up -d

Build

binary

To build a binary, you need:

• cargo >= 1.67.1
• npm >= 8.19.2

To build, run cargo build --release in the repo.

docker image

To build the docker image, simply run docker build . -t boulder-timer in the repo.