Hi @<1541954607595393024:profile|BattyCrocodile47> , sorry - I seemed to have missed this... 🙏
The easiest way to achieve #1 would be to use the AWS_PROFILE env var supported by boto3. For #2, if you have an IAM role assigned to an instance, you'll need to make sure the use_credentials_chain option is set to true .
#3 should work 🙂
Regarding the last questions, yes you can - there's an init bash acript you can provide where you can do whatever you wish 🙂