# application part (blogs) — RSS Amplifier Recent posts from the 3 feeds in the RSS Amplifier directory that cover application part. Page: Feed: --- ## [Databricks for AI Engineering](https://denislavgavrilov.com/databricks-for-ai-engineering) _2026-08-13 · Denislav Gavrilov_ Databricks bought Neon and turned it into Lakebase, so an agent can get its own branch of production in seconds and the rows it writes land in a governed table you can query. I walk through what that gives you, where it stops (nothing merges back), and what it means for getting an agent past read-only. ## [Make Claude speak TO you, not LIKE you](https://d13z.dev/blog/11-make-claude-speak-to-you/) _2026-08-05 · Home_ Claude tends to mirror how you write, but the way you talk isn't always the way you best take in information. Here's how I tuned mine to how I actually process things, using retention tests instead of guessing, plus a prompt so you can build your own. ## [Multirun: A Multi-Agent Run Framework](https://denislavgavrilov.com/multirun-a-multi-agent-run-framework) _2026-07-28 · Denislav Gavrilov_ Denis ran the same task through ten isolated Claude Code agents at once — each with its own git worktree and its own Postgres branch — and diffed what all ten did to the database. They agreed completely on the schema, then split 5/5 on two decisions nobody asked them to make. Where they split is the cheapest eval you will ever run. ## [Why I like Neon](https://denislavgavrilov.com/why-i-like-neon) _2026-07-21 · Denislav Gavrilov_ After two years on Supabase, I moved all my new projects to Neon and wrote down why: they are an agents-first company that ships everything to the API, they develop at very high velocity, and branching. ## [Experiments in Software Factories #1: Production app in 40 minutes](https://denislavgavrilov.com/software-factory-neon-entire-backend) _2026-07-03 · Denislav Gavrilov_ pastmonday.com is a real SaaS: auth, billing, uploads, and AI chat. A software factory of four Claude Code skills built it in about 40 minutes, and every backend service on the bill is Neon, including the brand new Object Storage and AI Gateway. ## [Neon ships to the API first, so build the feature yourself](https://denislavgavrilov.com/neon-api-first-agentic-coding) _2026-06-26 · Denislav Gavrilov_ Neon releases features to the API before anywhere else, which makes it perfect for agentic coding: your agent can build what the dashboard doesn't have yet. To prove it, I had Claude Code build a real hard spending cap (the one Neon only offers as alert-only), with two interactive widgets you can play with. ## [How To Build Any Web Application (Part 3): Landing Page](https://denislavgavrilov.com/how-to-build-any-web-application-2bb) _2026-06-23 · Denislav Gavrilov_ Continuing on Part 1 (setting up your developer environment) and Part 2 (defining your project to Claude Code), we are now jumping into Part 3, in which we are going to be building the landing page for our application. ## [How To Build Any Web Application (Part 2): Define your project](https://denislavgavrilov.com/how-to-build-any-web-application-fff) _2026-06-22 · Denislav Gavrilov_ Assuming you have followed part 1 of this series, you now have a beautiful, customized development environment, waiting for you to start using it. ## [How To Build Any Web Application (Part 1): Your Development Environment](https://denislavgavrilov.com/how-to-build-any-web-application) _2026-06-16 · Denislav Gavrilov_ Everyone says you can't code if you are not a developer. I say: this is false, and today anyone can build anything! This is the first part of a 6-posts series on how to build any app with AI agents. ## [Agentic Workflows: Branched Environments](https://denislavgavrilov.com/agentic-workflows-branched-environments) _2026-06-03 · Denislav Gavrilov_ Continuing on my agentic workflows exploration, I expand on my previous Supabase implementation of preview environments, and move to Neon for true branching. I get a solid implementation. ## [Watch chovy live code (Sponsored)](https://crawlproof.com/a/aFHrSnSVjTp8) _2026-06-03 · **Sponsored**_ Join Mosh Coding streams with collaborative screen sharing and remote control, open source. ## [Mini Shai-Hulud: Recreated](https://denislavgavrilov.com/mini-shai-hulud-recreated) _2026-05-24 · Denislav Gavrilov_ Practical exploration (and recreation) of the \`Mini Shai-Hulud\` supply chain attack. ## [Bypassing Apple's 20% store cut (with Stripe & RevenueCat)](https://denislavgavrilov.com/bypassing-apples-20-store-cut) _2026-04-27 · Denislav Gavrilov_ I make an iOS app, but I am concerned non-iOS users might want to engage with the idea so I find a way to allow web payments with Stripe & bind them to a RevenueCat entitlement. Apple accepts it. ## [Actionable Learning I: Reinforcement Learning](https://denislavgavrilov.com/actionable-learning-i-reinforcement) _2026-02-02 · Denislav Gavrilov_ I decide to learn the basics of AI/ML. I do, with Prime Intellect's "Hosted RL Training", Modal, and Codex. I fine-tune a LoRA model with synthetic data in the shape of a surveillance agent. ## [Hey, dentist! You are a software lead now.](https://denislavgavrilov.com/hey-dentist-you-are-a-software-lead) _2026-01-26 · Denislav Gavrilov_ A company sends a cold email to my girlfriend's sister. They ask for $400 to create a landing page for her new dental studio. I told her to drop the email in spam and made her a Github account instead ## [Clopus-agent: Claude Code in a CI](https://denislavgavrilov.com/clopus-agent-claude-code-in-a-ci) _2026-01-07 · Denislav Gavrilov_ Complete self-hosted natural language programming (""vibe coding"") platform with Github, ArgoCD, and Claude Code. Essentially, a far better and functional Replit/Lovable. ## [Preview Environments](https://denislavgavrilov.com/preview-environments) _2026-01-06 · Denislav Gavrilov_ A practical introduction to GitOps & the power of preview environments: a fully functional isolated environment, spawned automatically on every pull request. ## [Preview Environments](https://kuberdenis.substack.com/p/preview-environments) _2026-01-06 · Denislav Gavrilov · Denislav Gavrilov_ A practical introduction to GitOps & the power of preview environments: a fully functional isolated environment, spawned automatically on every pull request. ## [Clopus-Watcher: An autonomous monitoring agent](https://denislavgavrilov.com/clopus-watcher-an-autonomous-monitoring) _2025-12-27 · Denislav Gavrilov_ I put Claude Code in a cronjob in a k8s namespace. It is tasked to monitor an application and in the unfortunate case of application error (degraded pods), it is tasked to do a hotfix and document it. ## [Clopus-02: A 24-hour Claude Code run](https://denislavgavrilov.com/clopus-02-a-24-hour-claude-code-run) _2025-12-23 · Denislav Gavrilov_ A Claude Code instance runs without any human action for 24-hours. I gave it short-term (sqlite3) & long-term (qdrant) memory, as well as access to a browser. ## [Clopus-01: A semi-autonomous Claude Code](https://denislavgavrilov.com/clopus-01-a-semi-autonomous-claude) _2025-12-19 · Denislav Gavrilov_ I attempted to create a fully-autonomous Claude Code. While I did not reach full autonomy, I got pretty close. In this piece I share the stats, how it went, and well.. how it made me feel. ## [Finnish Seedboxes — Up to 20Gbps (Sponsored)](https://crawlproof.com/a/uEYjjBMHjBJB) _2025-12-19 · **Sponsored**_ Private Finnish seedboxes with 1–20Gbps speeds, RAID storage and 14‑day refund ## [The concept of a Character](https://denislavgavrilov.com/the-concept-of-a-character) _2025-12-14 · Denislav Gavrilov_ Notes on building a self: Purpose through escapism. ## [Architecting for Resilience: The Efficiency Fix: Saving €1,000/Month Through Architecture (Part 2)](https://d13z.dev/blog/architecting-for-resilience-part2/) _2025-12-09 · Home_ Moving from brute-force scaling to resilient engineering. How we implemented Redis, Circuit Breakers, and Node.js Clustering to stabilize the platform and reduce infrastructure costs by 60%. ## [Architecting for Resilience: When 150 RPS Becomes 2,000: Finding the Bottleneck](https://d13z.dev/blog/09-architecting-for-resilience/) _2025-12-08 · Home_ A deep dive into debugging a high-traffic Node.js crashloop. How we diagnosed a 'Fan-Out' architecture issue that amplified DDoS attacks against our own backend, threatening our availability. ## [Perfection, Authenticity & Intuition](https://denislavgavrilov.com/perfection-authenticity-and-intuition) _2025-12-07 · Denislav Gavrilov_ In the age of AI, those creating patterns will be rewarded with high amounts of satisfaction, while those with no soul to sign their work with, will be stuck in a no-reward purgatory of copying others ## [Tartare: Accessibility, Perception, and Internet Discourse](https://denislavgavrilov.com/tartare-inefficient-accessibility) _2025-12-07 · Denislav Gavrilov_ I ordered tartare, then I put it in a pan and posted photos of it on social media. Then ~5 million people hated me for it. Here's a story about food, technology, and the people. ## [I've Re-Written My Metrics Middleware for Every Node Framework. Maybe I Didn't Have To](https://d13z.dev/blog/08-prometheus-middleware-to-observers/) _2025-11-16 · Home_ Learnings from instrumenting Prometheus in NodeJS applications and how it should be done in 2025+. ## [Astro Prometheus Node Integration: Add Prometheus Metrics to Astro](https://d13z.dev/projects/astro-prometheus-node-integration/) _2025-10-26 · Home_ An Astro integration that exposes Prometheus metrics for your Astro site running with the Node.js adapter. ## [Why Kleinanzeigen.de Picked Astro Over Next.js](https://d13z.dev/blog/07-why-kleinanzeigen-picked-astro-over-nextjs/) _2025-04-23 · Home_ Our journey modernizing Germany's largest classifieds site, evaluating Next.js, Deno/Fresh, and Astro, and why Astro's islands were the right choice for our scale and challenges. ## [How we saved €20k/year by optimizing CI pipelines (Taming the CI Beast Part 4)](https://d13z.dev/blog/06-taming-the-ci-beast-part-4/) _2025-01-20 · Home_ Quantifying the cost savings and developer productivity gains achieved by optimizing our CI/CD pipeline. ## [Taming the CI Beast: Optimizing a Massive Next.js Application (Part 3)](https://d13z.dev/blog/05-taming-the-ci-beast-part-3/) _2025-01-11 · Home_ Reduce CI build times by optimizing the build process and Docker image creation for a massive Next.js application. Learn how we achieved a 9-minute CI pipeline! ## [Meet Claude, an AI assistant (Sponsored)](https://crawlproof.com/a/19nCqXFFf44W) _2025-01-10 · **Sponsored**_ Chat with Claude at claude.ai — a conversational AI assistant. ## [GitHub Action: Compare Lighthouse CI Results](https://d13z.dev/projects/actions-lighthouseci-compare/) _2025-01-10 · Home_ A GitHub Action to compare Lighthouse CI results between branches, preventing performance regressions directly in your pull requests. ## [Taming the CI Beast: Optimizing a Massive Next.js Application (Part 2)](https://d13z.dev/blog/04-taming-the-ci-beast-part-2/) _2025-01-06 · Home_ Delving into memory management and Jest worker optimization to further tame the CI beast and uncover hidden performance bottlenecks. ## [Taming the CI Beast: Optimizing a Massive Next.js Application (Part 1)](https://d13z.dev/blog/03-taming-the-ci-beast/) _2025-01-05 · Home_ How we slashed CI build times and empowered a team of 100+ developers by tackling performance bottlenecks in a massive Next.js application. ## [lighthouse-plugin-crux: A Lighthouse Plugin for Real-World Performance Insights](https://d13z.dev/projects/lighthouse-plugin-crux/) _2025-01-05 · Home_ Enhance your Lighthouse audits with field performance data from CrUX and Core Web Vitals using lighthouse-plugin-crux. ## [Lighthouse Viewer: Embed Lighthouse Reports in Your Web Projects](https://d13z.dev/projects/lighthouse-viewer/) _2025-01-05 · Home_ Easily integrate and view Lighthouse performance reports within your Vue, React, Svelte, or vanilla JavaScript projects with Lighthouse Viewer.