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ExternalSoftware Engineering
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¿Cómo revertir una migración promovida a Aurora sin perder los datos nuevos?

Migraste una base de datos MySQL de Amazon RDS a Amazon Aurora. La read replica de Aurora se puso al día, la promoviste, cambiaste el endpoint de la app, y ahora los writes aterrizan en Aurora. Diez minutos después, o quizá tres horas después, algo anda mal y quieres regresar a la vieja instancia de RDS. Aquí está la trampa. La vieja instancia de RDS está congelada en el momento en que hiciste el corte. Cada pedido, registro y edición que pegó en Aurora desde entonces no existe en RDS. "Reverti

awsclouddatabase
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ExternalSoftware Engineering
DEV Community

AgentATC

Track 3: AI & Agent Observability — "Agents of SigNoz" Hackathon (WeMakeDevs × SigNoz, July 2026) Every team at a hackathon like this is going to show you an agent that's slow, or an agent that errors. We're showing you something worse—and far more common. A multi-agent system where nothing ever fails. No exception. No page. No red dashboard. And yet the system is still stuck. Tasks bounce endlessly between an Executor and a Critic. Work is quietly repeated even after it's completed. Sometimes a

agentsaimonitoring
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ExternalSoftware Engineering
DEV Community

Extracting video frames in Rust, in-process — no CLI, no hand-written decode loop

Here is a task that comes up constantly. You are doing inference in Rust — candle, burn, ort — and you want to feed a video to a model. Step one is always the same: get the frames. And in Rust today, getting frames means one of two things. Either you shell out to Command::new("ffmpeg"), write PNGs to disk or parse -f rawvideo off a pipe, and read them back; or you reach for the low-level bindings and hand-write the send_packet / receive_frame decode loop — forty lines before the first pixel, and

rustffmpegframe
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ExternalSoftware Engineering
DEV Community

I replicated the vision-only Pokémon run Anthropic showcased on the Fable 5 launch page — then I read its thinking chains

Anthropic says Fable 5 can play Pokémon from vision alone. I verified that claim independently: 1,785 decisions and $65.40 to the first gym badge — then I read its thinking chains in the logs, and the result stopped looking so simple. In short — Anthropic's Fable 5 launch page claims the model beat Pokémon FireRed "with a minimal, vision-only harness." No protocol, no step count, no cost, no code was published. So I built my own harness — matching or undercutting every constraint in their descri

aipythonmachinelearning
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ExternalSoftware Engineering
DEV Community

Deployment of Python Bot on Koyeb and Heroku using StayPresent

Deploying Python Bots to Koyeb and Heroku with StayPresent Render and Railway tend to dominate the conversation around free Python bot hosting, but Koyeb and Heroku are both still widely used, and both come with their own quirks around ports, process types, and health checks. This guide walks through a koyeb heroku python bot deployment using StayPresent, covering what's different about each platform and what stays exactly the same. What Koyeb and Heroku Have in Common Deploying to Heroku with

clouddevopspython
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