I signed up for speedrun.com yesterday and I don't know how to submit a run and how to record it. I use an Android app for splits and I might use a Chromebook to record it. I use an NES Classic. Do you recommend that I buy extra equipment?

Hi everyone. I am a new speedrunner and I have an NES Classic and I am planning to speedrun some Mario 3. Probably some Super Mario Bros as well. How do you recommend that I record it? Right now, I only have a chromebook and I use a split timer app on my Android phone. I have been practicing a lot.