Firstly you won’t be able to stack your tokens until they fully implement the phase 2.0. According to the developers you will need a min required amount of Stx and stack directly from the wallet or from exchanges. You can also connect your ledger nano wallet and accept staking. Find more information on this website https://www.blockstack.org/p/stacks-wallet

More technical information could be found on this website :

https://docs.blockstack.org/stacks-blockchain/integrate-stacking

Remember this is on testnet mode at the moment and staking won’t work until mainnet. As mentioned before ANKR platform already offers the service for Stx stacking which is a lot simpler than doing it by yourself.

Where to stack Stx to get Bitcoin?