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MERIDIAN_SIGNING_KEY=$(openssl rand -hex 32) docker compose up -d
The server listens on http://localhost:3000.
Set a fixed MERIDIAN_SIGNING_KEY. If unset, a random key is generated on startup — all existing tokens become invalid on restart.
To persist the key, add it to a .env file: 
# .env
MERIDIAN_SIGNING_KEY=your_64_char_hex_string_here

docker compose up -d

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Docker only

docker run -d \
  -p 3000:3000 \
  -e MERIDIAN_SIGNING_KEY=$(openssl rand -hex 32) \
  -v meridian-data:/data \
  ghcr.io/Chahine-tech/meridian:latest

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From source

MERIDIAN_SIGNING_KEY=$(openssl rand -hex 32) \
MERIDIAN_DATA_DIR=./data \
cargo run --release