Are you doing this for yourself or in corporate environments?

I assume both situations but I would be curious to let you guys answer.

If you are doing this for yourself I would be further curious.

1. Are you doing this seriously 24/7 - for years?

2. Which brokers? Stocks, crypto only? Both?

3. What kind of hardware setups you work with you have a server in your basement, are you running on a VPS? More servers?

4. What kind tools/frameworks are you using open source projects from github, if so which?