Codecs, protocols and technology explained. Official sources linked.
Then every install link leaves this site for the vendor, store, or documentation page.
TLS Handshake Failed: Find the Certificate or Protocol Fault
A TLS handshake fails when certificates, clocks, protocol versions, cipher suites, proxies, or network rules prevent client and server agreement.
Also this week
How to Change Default Browser in Windows 10
Open Settings, choose Apps, then Default apps, and replace the current Web browser. Check link and file associations if exceptions remain.
Web browser settingProtocol defaultsFile type defaultsCustom URI scheme
CDN Examples Compared: Pull, Push, Private, and Multi-CDN
Pull CDN wins for most websites and APIs, while push, private, and multi-CDN suit large releases, controlled media, or strict resilience requirements.
Pull CDNPush CDNPrivate CDNMulti-CDN
Dolby Vision vs 4K: Why You Can Have Both
4K describes pixel resolution, while Dolby Vision controls HDR brightness, contrast and color. A television or stream can support either one, both or neither.
4K resolutionDolby Vision4K SDR4K Dolby Vision
Git Merge vs Rebase: Pick a History Policy That Stays Safe
Merge shared work, rebase private commits, and allow fast-forward updates when no divergent history needs to be preserved.
Fast-forwardMerge commitRebaseSquash merge
Run LLM Locally on Windows, macOS, or Linux
Check your memory, install Ollama, choose a sensible quantized model, and verify GPU acceleration before sending your first local prompt.
Memory checkOllama4-bit modelGPU verificationFirst prompt
RAG vs fine-tuning: Pick prompt engineering first
Start with prompt engineering, add RAG for changing knowledge, and fine-tune only when the model must consistently learn a task, style, or specialized language.
Prompt engineeringRAGFine-tuningHybrid
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Browser tools
Software
Password managers · Open source
Best Free Password Manager: Choose by Recovery, Encryption and Sync
Bitwarden suits most people, Proton Pass favors privacy extras, and KeePassXC gives local control at the cost of convenient recovery and syncing.
Media player · Open source
How mpv config Files, Profiles, and Precedence Work
Mpv reads options from platform-specific files, applies profiles when requested, and resolves most conflicts by letting the later setting win.
Artificial intelligence · Open source
Ollama Not Using GPU Windows: Diagnose CPU Fallback
Confirm which processor Ollama uses, then fix Windows GPU fallback by checking compatibility, drivers, video memory, model size, and service logs.
Media server · Official store
Plex Hardware Transcoding Not Working: Causes and Fixes
Check Plex Pass access, Transcoder settings, GPU drivers, subtitle burning, and client support before blaming the server hardware.
Archive
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