0. Initial TOML configuration is in rel->config->config_prod.toml. You can override config variables from prod.exs using this file. 1. Make a prod release from console: $> MIX_ENV=prod mix release ...

There is a post on the COOP blog mentioning TOML Fortran, which regularly directs visitors to this repository (see https://cerfacs.fr/coop/fortran-namelist-workedex). It mainly deals with namelists, ...