1. Astar Network Mainnet

2. Setup Metamask: https://docs.astar.network/integration/network-details

4. How to send ASTR from Polkadot.js to MetaMask: https://docs.astar.network/tutorial/how-to-send-astr-sdn-from-polkadot.js-to-metamask

5. How to send ASTR from exchanges to our portal: https://docs.astar.network/tutorial/how-to-send-astr-sdn-from-exchanges-to-our-portal

6. How to buy ASTR on a DEX: https://docs.astar.network/tutorial/how-to-buy-astr-on-a-dex