wrujel.com valid
Wilfredo Rujel Blog
Practical articles on software engineering, system architecture, and modern web development — from patterns to production.
- Authority
- 46 reach 0 · trust 10 · quality 21 · freshness 15
- Tier
- listed
- llms.txt
- https://blog.wrujel.com/llms.txt
- Sections
- 4
- Links
- 65
- Size
- 15451 bytes
- Registered
- 2024-03-22
- Country
- United States Hosting inference
- Hosting country
- United States Hosting inference
- Country evidence
- No published address evidence collected yet
- For agents
- Documentation: developer or product docs worth reading, nothing to call
- First seen
- 2026-10-26T17:55:21.415Z
- Last checked
- 2026-10-26T17:55:24.374Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-26T17:55:21.423Z. Cached copy · Source on wrujel.com
# Wilfredo Rujel Blog
> Practical articles on software engineering, system architecture, and modern web development — from patterns to production.
Written by Wilfredo Rujel. 368 articles on software engineering, published in en, es, de.
## Categories
- [Engineering](https://blog.wrujel.com/category/engineering): Software craft & practices
- [Architecture](https://blog.wrujel.com/category/architecture): Systems & patterns
- [Frontend](https://blog.wrujel.com/category/frontend): UI & user experience
- [Backend](https://blog.wrujel.com/category/backend): APIs & server logic
- [DevOps](https://blog.wrujel.com/category/devops): Pipelines & infrastructure
- [Career](https://blog.wrujel.com/category/career): Level up your career
- [Tutorials](https://blog.wrujel.com/category/tutorials): Step-by-step guides
- [Security](https://blog.wrujel.com/category/security): Vulnerabilities & defenses
- [Artificial Intelligence](https://blog.wrujel.com/category/ai): Models & integrations
- [Productivity](https://blog.wrujel.com/category/productivity): Tools & workflows
## Latest articles
- [Replication Lag: The Hidden Cost of Read Replicas](https://blog.wrujel.com/replication-lag-read-replicas-hidden-cost-5c78d9): Why read replicas introduce stale reads, how replication lag breaks consistency assumptions, and practical patterns to handle it safely.
- [Why SQLite Deserves a Place in Your Backend Stack](https://blog.wrujel.com/sqlite-production-backends-abfb58): Not just for mobile apps: with WAL mode and the right replication strategy, SQLite runs production workloads with less operational overhead than Postgres.
- [The CSS :has() Selector: A Practical Guide](https://blog.wrujel.com/css-has-selector-practical-guide-dff8b0): How the :has() pseudo-class finally gives CSS a parent selector, and the patterns, pitfalls and performance trade-offs that come with it.
- [GraphQL Federation: Splitting a Schema Without Splitting Teams](https://blog.wrujel.com/graphql-federation-composing-supergraph-services-2394bd): A practical guide to GraphQL Federation for breaking up a monolithic schema across services without duplicating resolvers or gateway logic.
- [CSS Anchor Positioning: The End of Popper.js](https://blog.wrujel.com/css-anchor-positioning-tooltips-without-js-6ae68a): CSS anchor positioning lets you position tooltips, popovers, and menus relative to any element without a JavaScript positioning library.
- [HTTP/3 and QUIC: What Backend Engineers Should Know](https://blog.wrujel.com/http3-quic-backend-engineers-guide-2474c9): HTTP/3 replaces TCP with QUIC over UDP, eliminating head-of-line blocking at the transport layer — here's what actually changes for your services.
- [Stop Reaching for any: Narrowing unknown in TypeScript](https://blog.wrujel.com/narrowing-unknown-typescript-safer-than-any-91b916): Why unknown is the type-safe replacement for any, and the narrowing patterns that make it practical in real code.
- [Postgres Row-Level Security for Multi-Tenant App
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