Meter Developer documentation with code examples and tutorials:

Everything you need to start building on Meter: https://docs.meter.io/developer-documentation/introduction
Remix: https://docs.meter.io/developer-documentation/interacting-with-meter-with-remix
Web3 API: https://docs.meter.io/developer-documentation/meterify-api
dApp tutorials: https://docs.meter.io/developer-documentation/meter-dapp-tutorials
Github: https://github.com/meterio
Community tutorials on how to use MTRG and VOLT tokens using the IERC token interface that include working examples https://github.com/meterio/meter_docs/tree/main/tutorials
Interoperability guide: github.com/meterio/token-list

Generally Useful Solidity Guides:

7 short tutorials: https://start.blockchainhax.com/
Hardhat: https://youtu.be/GBc3lBrXEBo
Security vulnerabilities: https://ethernaut.openzeppelin.com/
Solutions: https://cmichel.io/ethernaut-solutions/
Fun to follow for those interested in building games: https://cryptozombies.io/
Frontend dev with web3 https://betterprogramming.pub/build-your-first-dapp-with-web3-js-9a7306d16a61
Frontend dev with ethers https://blog.logrocket.com/building-dapp-ethers-js/
Testing with truffle: https://medium.com/oli-systems/test-driven-solidity-with-truffle-e4beaa2bd194

For immediate support join:

Discord: https://discord.gg/wsx44amMHj

Telegram: t.me/Meter_IO