https://github.com/ethberlin-hackathon/UX-Stuff/files/2363314/Presentation.ETHberlin.pdf
Other resources that can assist this research:
Account abstraction enables accounts to decide how they pay for the gas, paying with tokens is still a challenge with this but it is a move in th right direction
- first (old): https://eips.ethereum.org/EIPS/eip-86
- latest: ethereum/EIPs#859
https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1077.md
https://safe.gnosis.io/ https://gnosis-safe.readthedocs.io/en/latest/services/relay.html
https://medium.com/@austin_48503/ethereum-meta-transactions-90ccf0859e84