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Development

Run multiple instances of the same systemd unit • Steven Rombauts
I needed to start multiple instances of a single unit automatically with systemd. Instead of copying the same unit file multiple times, we can solve this with a single systemd template file.
Arrow symbols ← ↑ → ↓ ▲ ▼ ◀ ▶ Arrow and direction symbols in Unicode
There are upward arrows ↑, downward arrows ▼, and also round ↺, curved ↝, double ⇅ and triple ⇶. There’s even a 3D arrow ➫!
50 Useful Raspberry Pi Commands – A Beginner’s Guide
How to Set and Get Environment Variables in Python
To set and get environment variables in Python you can just use the os module: import os # Set environment variables os.environ[‘API_USER’] = ‘username’ os.environ[‘API_PASSWORD’] = ‘secret’ # Ge...