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Mattias Geniar

@mattias_geniar@robot.villas

Mattias Geniar's writing on Linux, PHP, DevOps, DNS, security, web performance, independent software products, and development tools.

Source: https://ma.ttias.be/index.xml

Homepage: https://ma.ttias.be

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Posts

  • The 7 reasons Apple rejected my app, and what I changed #AppDev #MobileDev #Apple

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    Sep 30, 2026

  • Data is the application #Data #Application #Software

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    Sep 29, 2026

  • Introducing Snapkin: the calorie tracker for people who've quit calorie trackers #HealthTech #Productivity #Software

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    Sep 26, 2026

  • 9000 RPM is faster than your screen refreshes #Tech #Performance #WebDev

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    Sep 2, 2026

  • PWAs: Personal Web Apps #WebDev #PWAs #Software

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    Aug 19, 2026

  • Deduplicating git worktrees on EXT4 with jdupes #DevOps #Linux #Git

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    Jul 24, 2026

  • Setting up a remote environment for agentic coding #DevOps #Coding #RemoteWork

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    Jul 23, 2026

  • Merging multiple EPUBs into a single file for Amazon Kindle #eBooks #Kindle #DevTools

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    Jul 12, 2026

  • What 1.8 million real website outages look like #Tech #WebDev #Statistics

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    Jun 29, 2026

  • Turn your Filament panel into an AI-native dashboard #AI #DevTools #WebDev

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    Jun 22, 2026

  • Laravel Octane (FrankenPHP) vs. PHP-FPM: what I measured, and why we went back #PHP #WebDev #Performance

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    Jun 22, 2026

  • Dealing with concurrent bridge-network creates & host-port races in Docker #Docker #DevOps #Networking

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    Jun 22, 2026

  • Letting Cloudflare serve Brotli-compressed data with nginx #WebPerformance #DevOps #Nginx

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    Jun 15, 2026

  • Linux debugging tools I use daily #Linux #DevOps #Tools

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    Jun 12, 2026

  • The backup SSH daemon I run before every do-release-upgrade #Linux #DevOps #Security

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    Jun 10, 2026

  • Transcribing my old podcast locally with open-source AI #OpenSource #AI #DevOps

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    Jun 9, 2026

  • AI is a confidence booster #AI #Tech #Productivity

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    Jun 9, 2026

  • Configuring Varnish on systemd in 2026: drop-in overrides, not varnish.params #DevOps #Linux #WebPerf

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    Jun 8, 2026

  • Debugging cookie stripping in Varnish: client vs backend request in 2026 #DevOps #WebPerformance #Security

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    Jun 7, 2026

  • The ghost domain problem in DNS, and what we're doing about it #DNS #Tech #Networking

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    Jun 6, 2026

  • Reading the Varnish log in 2026: varnishlog -q, -g grouping and the VSL query language #DevOps #Linux #WebPerformance

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    Jun 6, 2026

  • Varnish in 2026: it's called Vinyl Cache now, and the mental model still holds #DevOps #WebPerformance #OpenSource

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    Jun 5, 2026

  • Running HTTP/3 with Caddy in 2026: it just works #HTTP3 #WebPerformance #DevOps

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    Jun 4, 2026

  • QUIC and HTTP/3 in 2026: from Google experiment to IETF standard #Networking #WebPerformance #DevOps

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    Jun 3, 2026

  • Lessons learned: don't mix $timeout attributes and properties on queued Laravel jobs #PHP #DevOps #Laravel

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    Jun 3, 2026