I think elois wanted to test the substrate abstraction capabilities. His conclusion is that even substrate is quite easy to customize, this is not the case of the ecosystem around it.
To minimize friction against the ecosystem, I would prefer to stay closer to polkadot. The Duniter account-data is a customization of parity balances account-data which only adds the randomId whose utility is still subject to debate (La solution pour des identicones sécurisées: le random id - #16 by HugoTrentesaux).
In order to gain grain for transaction fees, I think it would be good to keep a 128 bit account balance. Elois obsession for optimization can be a bit cumbersome.
see also
- Nombre de décimales et durée maximale sans rotation de base (first post)
- Nombre de décimales et durée maximale sans rotation de base - #8 by elois (last post)
So I’m adding this to my TODO list: Je me lance à plein temps (HugoTrentesaux) - #2 by HugoTrentesaux