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Open Source

All posts in the Open Source category.

  • 8 min readOpen SourceSebastian Gieseler
    Daily releases without lost jobs: maintenance mode in CI

    Shipping almost every day means deploying into running background jobs almost every day. How we turned the deploy window into a predictable pipeline step with Croniq's maintenance mode, a configuration gate and run_on_register.

    • Open Source
    • DevOps
    • CI/CD
  • 5 min readOpen Source
    QSOlog: a logbook for radio amateurs that needs no server

    Our open-source project QSOlog logs radio contacts entirely in the browser: offline-first PWA, data in IndexedDB, ADIF export. What the project shows about web applications without a backend.

    • Open Source
    • WebApp
    • PWA
  • 4 min readOpen SourceTyron Carlomagno
    Distributed job scheduling: the schedule is the easy part

    Parsing cron expressions is a solved problem. It gets hard when a runner disappears mid-job. What building Croniq taught us about orphaned executions, identity takeover and calendar gating.

    • Open Source
    • DevOps
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