serverless

AWS just shipped something that reframes what “serverless” can mean. Lambda MicroVMs are not Lambda Functions with a bigger timeout. They are a fundamentally different primitive: stateful, VM-level isolated environments with an explicit lifecycle you control. The key shift: instead of getting a recycled process for 15 minutes, you get a dedicated Firecracker microVM that lives up to 8 hours. You decide when it starts, suspends, resumes, and terminates. What Lambda MicroVMs actually are Regular Lambda Functions are stateless by design....

SQS is cheap until it isn’t. Real example from the wild: $500k in a weekend, and Amazon reportedly asked the team not to delete everything at once in certain regions, as it could impact the service. The usual culprit isn’t message volume; it’s how often you call ReceiveMessage when the queue is empty. How SQS Billing Works You pay per request (SendMessage, ReceiveMessage, DeleteMessage, etc.), not per message. Standard queue: about $0....