Writing · Nº 041065 essays
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Clear filtersEngineeringThe 3-2-1 Backup Rule for Self-Hosted ServersThe 3-2-1 backup rule is not enterprise theater. Here is how to apply three copies, two media, one offsite to a self-hosted VPS without buying a storage vendor.EngineeringChurn vs Complexity: Find Your Real HotspotsComplex code is only dangerous when it changes. Cross churn against complexity to find the hotspots in your repo that actually deserve a refactor first.EngineeringCopy-Paste vs a Shared Dependency: When Each WinsNot every repeated piece of code belongs in a shared dependency. Here is how to decide between copy-paste and a shared library so your foundation compounds.EngineeringHow to Calculate the True Cost Per Page of ScrapingYour cost per page of scraping is not the proxy bill. It is proxies plus compute plus retries plus parsing plus storage. Here is how to compute the real number.EngineeringFintech Transactional Email: What the Rules ExpectFintech transactional email carries money movements and legal disclosures. Here is what your app emails must include and log to survive an audit.EngineeringHow to Audit a Codebase You InheritedInherited a codebase you did not write? Here is the exact order I audit an unfamiliar repo to find risk fast, before I commit to owning or changing it.EngineeringHow to Build a Reusable SaaS Foundation That CompoundsA practical guide to building a reusable SaaS foundation: what to standardize first, what to leave per product, and how to keep the shared core from rotting.EngineeringHow to Scale WebSockets Without It Falling OverScaling WebSockets breaks most backends because connections are stateful. Here is how to scale WebSocket infrastructure past one node without losing sessions.EngineeringKeep a Research Agent From Citing Sources That Don't ExistA research agent that invents citations is worse than no agent. Here is how to force source-grounding so every claim traces to a real, checkable passage.EngineeringHow to Make Every AI Decision Defensible After the FactHow to make AI decisions defensible: capture inputs, versions, and reasoning at decision time so you can prove what happened months later when it matters.EngineeringHow Offline Sync Works in Collaborative AppsOffline sync for collaborative apps needs a durable operation log and server reconciliation, not just a cache. Here is how to build sync that survives a dead connection.EngineeringReliable Cron Jobs on a VPS: Use systemd TimersCrontab silently fails and you never find out. Here is how to run reliable cron jobs on a VPS with systemd timers, logging, and failure alerts.