How about a configuration format that is actually format agnostic? Something like this:

#! /bin/env fancy-file-format
26m2zKqSa... (some binary data)

Then you just run it like that 🤯

# Print data as JSON
./config.fff --format json

# Write data from YAML
echo "so = true" | ./config.fff --format yaml

# Edit data as temporary TOML file
./config.fff --format toml --edit

#config #xkcd927