Caching Cognito M2M Tokens With Lambda, DynamoDB, and WAF

Cognito's machine-to-machine authentication is just the OAuth 2.0 Client Credentials flow. To use it, your service hands Cognito a client ID and a client secret, and it gets back a short-lived access token. It's all pretty handy and every successful token request...

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A 7-Segment Clock Built With No Digital Electronics

If you wanted to build a clock with a 7-segment display, there are a wide variety of ways you might go about it. You could grab some 74-series logic chips and create a whole bunch of counters and decoders to drive the display, or you could wire up a microcontroller...

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Should managers step in to help their sales staff?

Workers in sales might roll their eyes when they deal with a micromanaging boss. But many customers actually appreciate it if a store manager offers to help when they’re mulling over a purchase, whether it’s a dishwasher, a tablet or a lawnmower. That’s the main...

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Show HN: Radix – Visual UI for agentic programming

Hey HN, I'm Jordan from Radix.Radix is a UI tool for programming agents. You prompt your agent to generate a workspace for a task you're working on and get an interactive widget that persists locally on disk.I built Radix because I always needed tools while I was...

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