ContentPosts from @varbear..
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@varbear shared a link, 5 days, 12 hours ago
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Free software scares normal people

A developer rolled outMagicbrake- a no-fuss GUI forHandbrakeaimed at folks who don’t speak command line. One button. Drag, drop, convert. Done. It strips Handbrake down to the bones for anyone who just wants their video in a different format without decoding flags and presets...

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@varbear shared a link, 5 days, 12 hours ago
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Kafka is fast -- I'll use Postgres

Postgres is pulling Kafka moves—without the Kafka. On a humble 3-node cluster, it held 5MB/s ingest and 25MB/s egress like a champ. Low latency. Rock-solid durability. Crank things up, andsingle-node Postgresflexed hard: 240 MiB/s in, 1.16 GiB/s out for pub/sub. Thousands of messages per second in q..

Kafka is fast -- I'll use Postgres
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@varbear shared a link, 5 days, 12 hours ago
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How Netflix Tudum Supports 20 Million Users With CQRS

Netflix gutted Tudum’s old read path—Kafka, Cassandra, layers of cache—and swapped inRAW Hollow, a compressed, distributed, in-memory object store baked right into each microservice. Result? Homepage renders dropped from 1.4s to 0.4s. Editors get near-instant previews. No more read caches. No extern..

How Netflix Tudum Supports 20 Million Users With CQRS
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@varbear shared a link, 5 days, 12 hours ago
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Aggressive bots ruined my weekend

Bear Blog went dark after getting swarmed by scrapers. The reverse proxy choked first - too many requests, not enough heads-up. Downstream defenses didn’t catch it in time. So: fire, meet upgrades. What changed: Proxies scaled 5×. Upstream got strict with rate limits. Failover now has a pulse. Resta..

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@varbear shared a link, 5 days, 12 hours ago
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The bug that taught me more about PyTorch than years of using it

A sneaky bug inPyTorch’s MPS backendlet non-contiguous tensors silently ignore in-place ops likeaddcmul_. That’s optimizer-breaking stuff. The culprit? ThePlaceholder abstraction- meant to handle temp buffers under the hood - forgot to actually write results back to the original tensor...

The bug that taught me more about PyTorch than years of using it
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@varbear shared a link, 5 days, 12 hours ago
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uv is the best thing to happen to the Python ecosystem in a decade

uvis a new Rust-powered CLI from Astral that tosses Python versioning, virtualenvs, and dependency syncing into one blisteringly fast tool. It handles yourpyproject.tomllike a grown-up—auto-generates it, updates it, keeps your environments identical across machines. Need to run a tool once without t..

uv is the best thing to happen to the Python ecosystem in a decade
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@varbear shared an update, 5 days, 20 hours ago
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AI Takes Over GitHub: TypeScript Tops the Charts as 36 Million New Developers Join the Platform

Docker TypeScript vLLM GitHub Copilot Python

In 2025, GitHub saw a surge in growth with AI advancements, as TypeScript overtook Python and JavaScript in popularity, fueled by the release of GitHub Copilot Free and a global developer expansion.

AI Takes Over GitHub: TypeScript Tops the Charts as 36 Million New Developers Join the Revolution
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@varbear added a new tool TypeScript , 5 days, 20 hours ago.
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@varbear shared a link, 1 week, 3 days ago
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Build Your Own Database

LSM trees fix the mess naive key-value stores run into. They blendin-memory sorted indexeswithappend-only disk filesto keep things snappy. Writes get logged, not scattered. Reads stay fast. When files pile up,compaction and segmentingkick in to keep storage lean. This is a rewrite of the storage pla..

Build Your Own Database
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@varbear shared a link, 1 week, 3 days ago
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100X Faster: How We Supercharged Netflix Maestro’s Workflow Engine

The Maestro engine has been revamped for jaw-dropping improvement: a speed boost of100Xwith overhead slashed from seconds to milliseconds. The groundbreaking redesign delivers massive performance gains, solving past workflow development hurdles and elevating user experiences sky-high!..