Due to shortage of time I hardcoded 2 hacks to OpenZeppelin node modules: - `const relay_lookup_limit_blocks = 1000;` - a RelayerURL "gsn.sirius.lightstreams.io" path in `openzeppelin/gsn-provider` node module dependency File containing both hacks: `node_modules/@openzeppelin/gsn-provider/src/tabookey-gasless/RelayClient.js` I added comments and will fix this in the incoming weeks but this will do for the moment. These changes will be automatically applied by a post-install script using a patching strategy.