In C++ you get the great https://github.com/nlohmann/json https://github.com/nlohmann/json In Rust you have the amazing serde with serde_json but at this point

In C++ you get the great https://github.com/nlohmann/json https://github.com/nlohmann/json In Rust you have the amazing serde with serde_json but at this point, you can use toml which is also based on serde. I consider serde as being standard. In C you have the lib jason which is very good. In Elixir, I use the compile-time configuration (config/config.exs) with environment variables for production, but that's because in the end, my Elixir system is in a Docker container, running on Kubernetes, with a ConfigMap defining the environment variables, so in the end, it's YAML (or JSON).