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ExternalSoftware Engineering
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Smart Resume for File Transfers in Rust — Never Start Over

All tests run on an 8-year-old MacBook Air. All results from shipping 7 Mac apps as a solo developer. No sponsored opinion. A 2GB video transfer that fails at 90% and restarts from zero is a terrible experience. HiyokoMTP and HiyokoAutoSync both implement smart resume. Here's how. File transfers fail. USB connections drop. Devices sleep. The user unplugs at the wrong moment. Without resume: start over. With resume: pick up where you left off. Track transfer state in SQLite. On failure, record th

taurirustandroid
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ExternalSoftware Engineering
DEV Community

Python interview questions: what each one actually predicts on the job (2026)

Canonical: this is a cross-post. The original lives at https://four-leaf.ai/blog/python-interview-questions You can find a hundred Python interview question lists in about ten seconds. Most of them are the same: here's the question, here's the answer, memorize it, good luck. Final Round AI's popular roundup runs to 95 questions in exactly that shape. Those lists optimize for the wrong thing. I've sat on the interviewing side of enough Python screens to know what actually moves a decision, and it

pythoninterviewcareer
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ExternalSoftware Engineering
DEV Community

Cloud Architect's 2026 Guide to Cheaper, Faster LLM Inference

Cloud Architect's 2026 Guide to Cheaper, Faster LLM Inference Three months ago I opened our quarterly cloud spend dashboard and almost choked on my coffee. Our LLM inference line item had ballooned to 14% of the entire infrastructure budget. We were running what I thought was a "moderately busy" multi-region chatbot across US-East, EU-West, and APAC, and the bills told a different story than the dev team Slack channel did. So I did what any cloud architect worth their salt does at 2 AM: I built

apiprogrammingtutorial
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ExternalSoftware Engineering
DEV Community

[System Design] Uber RAMEN: How Ride-Hailing Apps Push Real-Time Notifications to Millions of Devices

The Problem: Pushing Instant Notifications to Millions of Devices Answer-first: Uber's RAMEN system maintains persistent gRPC bidirectional streams to every active driver app. When a match is made, the ride offer travels from the matching engine to the driver's phone in under 100ms — without polling. This is how millions of connections are held open simultaneously without crashing the backend. When DISCO decides to match you with Driver John Doe, the system must: Send the ride offer to exactly

systemdesignarchitecturewebsockets
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ExternalCloud
AWS News Blog

Amazon S3 annotations: attach rich, queryable context directly to your objects

Amazon S3 now lets you attach up to 1 GB of rich, mutable, and queryable context directly to your objects using annotations, purpose-built for AI agents and autonomous workflows that need to discover, understand, and act on data at scale without maintaining separate metadata systems.

Amazon Simple Storage Service (S3)AWS Summit New YorkEvents
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ExternalSoftware Engineering
DEV Community

Qtractor Usage Bible - Summary

Qtractor is a lightweight Linux DAW (Digital Audio Workstation) for audio and MIDI recording. This bible series is organized in a workflow-oriented reference fasion that progresses from session creation → recording → editing → mixing → export → advanced techniques. Contents are organized in consistent chapter sizes fasion, so: Each installment is about 5,000--8,000 words. Each installment should be self-contained. Each installment should end at a natural workflow boundary. No installmen

qtractordawaudio
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