Software engineering, AI, automation, product and the internet.https://www.sebastianodruda.it/enhttps://www.sebastianodruda.it/writing/tooling-is-good-when-it-disappears/https://www.sebastianodruda.it/writing/tooling-is-good-when-it-disappears/Choose development tools that make correct work easier. Balance formatting, linting, types and tests against setup friction, exceptions and maintenance.Wed, 14 Oct 2026 15:00:00 GMThttps://www.sebastianodruda.it/writing/deployment-should-be-boring-enough-to-trust/https://www.sebastianodruda.it/writing/deployment-should-be-boring-enough-to-trust/Build predictable releases with validation, restricted credentials and manifest ownership. Examine the boundaries of this static site’s deployment pipeline.Wed, 14 Oct 2026 14:00:00 GMThttps://www.sebastianodruda.it/writing/dns-hosting-and-ssl-are-different-things/https://www.sebastianodruda.it/writing/dns-hosting-and-ssl-are-different-things/Separate DNS delegation, hosting, TLS and HTTP redirects. Lessons from moving this static site from SiteGround toward its verified HostingPerTe deployment.Wed, 14 Oct 2026 13:00:00 GMThttps://www.sebastianodruda.it/writing/git-history-is-part-of-the-product/https://www.sebastianodruda.it/writing/git-history-is-part-of-the-product/Clear commits preserve the reasoning behind software changes. Make history useful for review, debugging and recovery without burying behavior in noise.Wed, 14 Oct 2026 12:00:00 GMThttps://www.sebastianodruda.it/writing/product-identifiers-are-infrastructure/https://www.sebastianodruda.it/writing/product-identifiers-are-infrastructure/Distinguish internal IDs, supplier references, SKUs and GTINs. Preserve identity, packaging context and mappings before automating downstream catalogue work.Wed, 14 Oct 2026 11:00:00 GMThttps://www.sebastianodruda.it/writing/integration-bugs-live-between-systems/https://www.sebastianodruda.it/writing/integration-bugs-live-between-systems/Integration failures emerge from timing and conflicting assumptions. Design for retries, duplicate delivery, partial updates and evidence across boundaries.Wed, 14 Oct 2026 10:00:00 GMThttps://www.sebastianodruda.it/writing/catalogue-automation-fails-quietly/https://www.sebastianodruda.it/writing/catalogue-automation-fails-quietly/A catalogue job can succeed while publishing incorrect prices or mappings. Add semantic checks, reviewable changes and recovery to the import boundary.Wed, 14 Oct 2026 09:00:00 GMThttps://www.sebastianodruda.it/writing/supplier-data-is-an-api-even-when-it-is-excel/https://www.sebastianodruda.it/writing/supplier-data-is-an-api-even-when-it-is-excel/Treat supplier spreadsheets as versioned external interfaces. Make schemas, provenance, missing values and identity rules explicit before importing rows.Wed, 14 Oct 2026 08:00:00 GMThttps://www.sebastianodruda.it/writing/bootstrapping-changes-good-architecture/https://www.sebastianodruda.it/writing/bootstrapping-changes-good-architecture/Limited time and operating capacity shape architecture. Use the static publishing workflow to examine fixed costs, reversibility and justified complexity.Wed, 14 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/a-failed-experiment-can-be-a-successful-product-decision/https://www.sebastianodruda.it/writing/a-failed-experiment-can-be-a-successful-product-decision/Design experiments that can stop a weak idea as well as support it. Define decisions, measurement checks and stopping rules before interpreting results.Wed, 14 Oct 2026 06:00:00 GMThttps://www.sebastianodruda.it/writing/users-describe-pain-better-than-products/https://www.sebastianodruda.it/writing/users-describe-pain-better-than-products/Use interviews to understand recent behavior, workarounds and constraints. Treat feature requests as clues to investigate before committing to a solution.Tue, 13 Oct 2026 15:00:00 GMThttps://www.sebastianodruda.it/writing/the-first-version-should-answer-a-question/https://www.sebastianodruda.it/writing/the-first-version-should-answer-a-question/Scope a first product around the assumption you need to test. Choose evidence, participants and decision rules before turning a hypothesis into a backlog.Tue, 13 Oct 2026 14:00:00 GMThttps://www.sebastianodruda.it/writing/the-best-python-script-runs-again-tomorrow/https://www.sebastianodruda.it/writing/the-best-python-script-runs-again-tomorrow/Make repeatable Python catalogue jobs with explicit inputs, rejected rows, dry runs and deterministic output, then define what a successful rerun means.Tue, 13 Oct 2026 13:00:00 GMThttps://www.sebastianodruda.it/writing/an-ai-feature-is-a-system-not-a-model-call/https://www.sebastianodruda.it/writing/an-ai-feature-is-a-system-not-a-model-call/Design AI features around inputs, retrieval, evaluation and recovery. A model response needs a reliable product workflow before anyone can depend on it.Tue, 13 Oct 2026 12:00:00 GMThttps://www.sebastianodruda.it/writing/the-prompt-is-the-smallest-part-of-the-context/https://www.sebastianodruda.it/writing/the-prompt-is-the-smallest-part-of-the-context/Useful AI context includes repository state, schemas, examples and tool results. Curate evidence and authority instead of polishing one instruction forever.Tue, 13 Oct 2026 11:00:00 GMThttps://www.sebastianodruda.it/writing/give-the-agent-a-definition-of-done/https://www.sebastianodruda.it/writing/give-the-agent-a-definition-of-done/Make repository tasks verifiable with acceptance criteria, focused context, meaningful tests, visual review and clear boundaries for a production release.Tue, 13 Oct 2026 10:00:00 GMThttps://www.sebastianodruda.it/writing/architecture-decisions-have-expiration-dates/https://www.sebastianodruda.it/writing/architecture-decisions-have-expiration-dates/Architecture decisions depend on assumptions that change. Record context, review triggers and migration costs so yesterday’s sensible choice stays visible.Tue, 13 Oct 2026 09:00:00 GMThttps://www.sebastianodruda.it/writing/every-extra-choice-has-a-cost/https://www.sebastianodruda.it/writing/every-extra-choice-has-a-cost/Choices impose reading, comparison and recovery costs. Design defaults and progressive disclosure around what people need to understand before acting.Tue, 13 Oct 2026 08:00:00 GMThttps://www.sebastianodruda.it/writing/it-should-be-fast-is-not-a-requirement/https://www.sebastianodruda.it/writing/it-should-be-fast-is-not-a-requirement/Turn vague performance expectations into testable scenarios, with explicit workloads, measurement boundaries and targets that reflect real user needs.Tue, 13 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/complexity-is-a-coordination-problem/https://www.sebastianodruda.it/writing/complexity-is-a-coordination-problem/Complexity grows when components, people and states must agree. A practical look at coupling, shared state and the coordination hidden inside architecture.Tue, 13 Oct 2026 06:00:00 GMThttps://www.sebastianodruda.it/writing/productivity-stack-should-remove-context-switching/https://www.sebastianodruda.it/writing/productivity-stack-should-remove-context-switching/More apps can create more places for work to disappear. Design a productivity stack around clear ownership, fewer handoffs and recovery after interruption.Mon, 12 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/when-a-saas-comparison-becomes-an-architecture-decision/https://www.sebastianodruda.it/writing/when-a-saas-comparison-becomes-an-architecture-decision/When a service becomes part of your infrastructure, migration and data access matter. Compare SaaS tools through boundaries, recovery and a tested exit plan.Mon, 12 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/linux-is-boring-until-it-saves-your-day/https://www.sebastianodruda.it/writing/linux-is-boring-until-it-saves-your-day/Files, permissions, processes, ports and logs make infrastructure inspectable. Use a Linux investigation to narrow a failure without breaking more things.Sun, 11 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/own-the-source-rent-the-infrastructure/https://www.sebastianodruda.it/writing/own-the-source-rent-the-infrastructure/Control can live in source, content and a portable build. A practical look at static hosting, independent recovery and the limits of infrastructure ownership.Sun, 11 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/your-laptop-is-part-of-your-development-environment/https://www.sebastianodruda.it/writing/your-laptop-is-part-of-your-development-environment/Memory, storage, thermals and ergonomics shape daily development. Evaluate a laptop through a workflow and its constraints, rather than a specification contest.Sun, 11 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/github-actions-as-a-publishing-system/https://www.sebastianodruda.it/writing/github-actions-as-a-publishing-system/Versioned articles, validation, static builds and search indexing form a publishing pipeline. Here is how this site connects editorial changes to delivery.Sat, 10 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/inventory-is-a-consistency-problem/https://www.sebastianodruda.it/writing/inventory-is-a-consistency-problem/A stock number means little without ownership, reservations and freshness. Explore overselling, delayed updates and reconciliation across sales channels.Sat, 10 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/digital-operations-where-strategy-meets-the-spreadsheet/https://www.sebastianodruda.it/writing/digital-operations-where-strategy-meets-the-spreadsheet/Product data, approvals and exception queues turn strategy into daily work. Make decisions explicit before automating the spreadsheet that holds them.Fri, 09 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/good-development-workflow-removes-repeated-decisions/https://www.sebastianodruda.it/writing/good-development-workflow-removes-repeated-decisions/Scripts, publication gates and nearby documentation turn repeated project decisions into a predictable workflow that humans and coding agents can both follow.Fri, 09 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/ecommerce-architecture-keeping-systems-consistent/https://www.sebastianodruda.it/writing/ecommerce-architecture-keeping-systems-consistent/Catalogue, prices, orders and stock overlap across commerce systems. Decide who owns each fact, how changes travel and how conflicts are detected and repaired.Thu, 08 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/why-i-did-not-use-a-vps-for-my-static-site/https://www.sebastianodruda.it/writing/why-i-did-not-use-a-vps-for-my-static-site/A small visitor counter was pulling this portfolio toward a backend. Removing it made the hosting decision simpler without giving up the features that mattered.Wed, 07 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/api-integration-is-a-relationship-between-failure-modes/https://www.sebastianodruda.it/writing/api-integration-is-a-relationship-between-failure-modes/The happy path is only the beginning. Design integrations around ownership, retries, idempotency, partial updates and reconciliation of uncertain outcomes.Tue, 06 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/woocommerce-when-operations-stop-being-simple/https://www.sebastianodruda.it/writing/woocommerce-when-operations-stop-being-simple/WooCommerce can support commerce, while integrations and operating rules need their own design. Examine data ownership, extensions and recovery at the edges.Mon, 05 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/one-product-five-marketplaces-fifty-rules/https://www.sebastianodruda.it/writing/one-product-five-marketplaces-fifty-rules/Multi-channel commerce is an integration problem: shared product facts meet different schemas, publication states and failure modes that need explicit handling.Sun, 04 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/csv-is-not-a-database-but-sometimes-it-is-the-interface-you-get/https://www.sebastianodruda.it/writing/csv-is-not-a-database-but-sometimes-it-is-the-interface-you-get/Supplier files need an explicit boundary: preserve the input, detect its schema, normalize carefully and validate meaning before creating channel exports.Sat, 03 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/roadmap-as-bet-portfolio/https://www.sebastianodruda.it/writing/roadmap-as-bet-portfolio/A roadmap can explain strategic choices without pretending uncertainty has disappeared. Make bets, dependencies and review points explicit before promises.Fri, 02 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/the-hard-part-of-ecommerce-is-product-data/https://www.sebastianodruda.it/writing/the-hard-part-of-ecommerce-is-product-data/Supplier files become a systems problem when identifiers, variants, prices and stock disagree. A practical way to build a catalogue you can safely publish.Thu, 01 Oct 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/a-smaller-product-can-be-a-bigger-strategy/https://www.sebastianodruda.it/writing/a-smaller-product-can-be-a-bigger-strategy/Reconsidering an all-in-one product can reveal a clearer entry point. Notes on FiscoBud, focused scope, educational support and a credible path to expansion.Wed, 30 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/building-in-public-needs-a-learning-goal/https://www.sebastianodruda.it/writing/building-in-public-needs-a-learning-goal/Public updates can create conversations, but attention alone cannot validate a product. Define the learning goal, audience and evidence before sharing work.Mon, 28 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/validation-is-not-asking-if-people-like-your-idea/https://www.sebastianodruda.it/writing/validation-is-not-asking-if-people-like-your-idea/Compliments cannot carry a product decision. Connect assumptions to recent behavior, existing alternatives and experiments that can genuinely change the plan.Sun, 27 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/go-to-market-starts-before-launch/https://www.sebastianodruda.it/writing/go-to-market-starts-before-launch/Distribution, buying decisions and trust belong in product discovery. Trace the route from a customer problem to a first conversation and useful adoption.Sat, 26 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/build-measure-learn-is-not-a-three-step-checklist/https://www.sebastianodruda.it/writing/build-measure-learn-is-not-a-three-step-checklist/The useful work begins before building: identify a risky assumption, choose evidence that could change a decision and design the smallest meaningful experiment.Fri, 25 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/saas-pricing-is-a-product-decision/https://www.sebastianodruda.it/writing/saas-pricing-is-a-product-decision/Pricing shapes who a SaaS product serves and how customers experience its value. Explore packaging, usage measures and honest tests of willingness to pay.Thu, 24 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/problem-solution-fit-before-features/https://www.sebastianodruda.it/writing/problem-solution-fit-before-features/Revisiting FiscoBud exposed a useful distinction: a coherent product concept can still rest on untested problems. Feature planning needs evidence underneath it.Tue, 22 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/ai-infrastructure-cost-latency-and-failure/https://www.sebastianodruda.it/writing/ai-infrastructure-cost-latency-and-failure/Latency, cost, rate limits and recovery shape an AI feature long before a model benchmark settles the choice. Design the dependency around the actual user task.Mon, 21 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/automate-the-boring-part-keep-the-judgment/https://www.sebastianodruda.it/writing/automate-the-boring-part-keep-the-judgment/A practical way to choose automation boundaries for catalogue work: stable transformations, inspectable inputs, visible exceptions and deliberate human review.Sun, 20 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/n8n-is-great-until-your-workflow-becomes-a-product/https://www.sebastianodruda.it/writing/n8n-is-great-until-your-workflow-becomes-a-product/Visual workflows can coordinate useful work without owning each rule. Examine testing, recovery and the point where domain logic deserves its own boundary.Sat, 19 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/context-engineering-beats-prompt-tricks/https://www.sebastianodruda.it/writing/context-engineering-beats-prompt-tricks/Better AI-assisted work starts with approved decisions, useful evidence and clear limits. A practical approach to context that survives real project changes.Thu, 17 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/the-best-llm-workflow-has-an-exit-ramp/https://www.sebastianodruda.it/writing/the-best-llm-workflow-has-an-exit-ramp/An LLM workflow needs a route for uncertainty, invalid output and exhausted retries. Design review queues and deterministic checks before automating decisions.Wed, 16 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/ai-features-need-an-evaluation-plan-before-a-demo/https://www.sebastianodruda.it/writing/ai-features-need-an-evaluation-plan-before-a-demo/An impressive output is a starting point. Build an evaluation plan around realistic tasks, visible failures, human review and changes to prompts or models.Tue, 15 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/ai-coding-gets-better-when-the-model-proves-it/https://www.sebastianodruda.it/writing/ai-coding-gets-better-when-the-model-proves-it/AI-assisted changes need inspectable evidence: repository context, meaningful tests, visual checks and diff review. Generation is the beginning of the workflow.Sun, 13 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/coding-agents-beyond-autocomplete/https://www.sebastianodruda.it/writing/coding-agents-beyond-autocomplete/Building this website with a coding agent changed the unit of delegation: a bounded engineering task, with repository context, checks and a reviewable result.Sat, 12 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/web-engineering-state-boundaries-and-boring-details/https://www.sebastianodruda.it/writing/web-engineering-state-boundaries-and-boring-details/Web systems accumulate complexity around state, URLs, caches and integrations. Follow a catalogue change across boundaries a polished interface can hide.Fri, 11 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/the-best-code-is-often-the-code-you-can-delete/https://www.sebastianodruda.it/writing/the-best-code-is-often-the-code-you-can-delete/Removing a visitor counter simplified an entire operating model. A field note on maintenance cost, safe deletion and responsibilities hidden behind features.Thu, 10 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/design-patterns-are-vocabulary-not-architecture/https://www.sebastianodruda.it/writing/design-patterns-are-vocabulary-not-architecture/Strategy, Adapter and Observer help name design choices. Their value depends on the forces they address, their costs and the boundaries they preserve.Tue, 08 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/reliable-software-starts-before-the-code/https://www.sebastianodruda.it/writing/reliable-software-starts-before-the-code/Turn vague promises about reliability into measurable scenarios, with explicit failure conditions, recovery boundaries and evidence a test can actually collect.Mon, 07 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/good-interfaces-reduce-thinking-not-just-clicking/https://www.sebastianodruda.it/writing/good-interfaces-reduce-thinking-not-just-clicking/Fewer clicks can still mean more confusion. A practical argument for interfaces that expose state, explain choices and reduce the memory a task requires.Sat, 05 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/reliability-after-the-happy-path/https://www.sebastianodruda.it/writing/reliability-after-the-happy-path/Reliability becomes visible when networks fail and work must recover. Explore buffering, bounded retries and requirements that describe useful failure behavior.Fri, 04 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/everything-is-a-trade-off-software-architecture-in-practice/https://www.sebastianodruda.it/writing/everything-is-a-trade-off-software-architecture-in-practice/A forest-monitoring exercise shows how buffering, recovery targets and limited bandwidth turn software architecture into a series of explicit trade-offs.Thu, 03 Sep 2026 07:00:00 GMThttps://www.sebastianodruda.it/writing/a-test-that-never-fails-is-not-reassuring/https://www.sebastianodruda.it/writing/a-test-that-never-fails-is-not-reassuring/Tests earn trust by exposing mistakes. A practical look at boundaries, regressions and failure cases, using the verification workflow behind this static site.Wed, 02 Sep 2026 07:00:00 GMT