Your node will start as an Observer. In order to make it into a Validator, you will need 2500 xEGLD tokens. An admin in our Telegram community will gladly help - https://t.me/ElrondValidators
First you need to create an Elrond wallet on the devnet at https://devnet-wallet.elrond.com
After you create the wallet, share its public address (erd1...) with an admin on the Telegram community, and you will receive test xEGLD.
Once you have sufficient funds, you can use the wallet to send a stake transaction for your node, in order for it to become a Validator on the public devnet.
In the Devnet wallet, go to the "Validate" section, click on the "Stake now" button, select the validatorKey.pem file you created for your node and proceed according to the instructions.
You can check the status of your Stake transaction and other information about the devnet and your validator node in the devnet-explorer at https://devnet-explorer.elrond.com. Make sure to check out the Validators section.
To distinguish between the mainnet and devnet, we have carefully created different addresses for the devnet tools, which are also presented in a predominantly black theme. Stay safe and know the difference, to avoid mistakes involving your mainnet validators and real EGLD tokens.