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Insights, analysis, and updates from the AI agent economy. Browse by tag · Browse the archive.

Render's $0.30/GB Postgres Line: When Your Database Bill Stops Being About Compute
·Dora Noda·11 min

Render's $0.30/GB Postgres Line: When Your Database Bill Stops Being About Compute

Render's flexible Postgres plans split the bill into compute plus $0.30/GB/month storage. Worked numbers at 5, 50, and 100 GB show where storage overtakes compute — and what self-hosting the same database on Hetzner really costs.

PaaS
migration
cost-optimization
self-hosting
The Break-Even Point: When Railway, Render, and Fly.io Bills Cross the Cost of Owning the Box
·Dora Noda·9 min

The Break-Even Point: When Railway, Render, and Fly.io Bills Cross the Cost of Owning the Box

The same 1-vCPU/2-GB service costs about $12/month on Fly.io, $25 on Render, and $60 on Railway. A worked per-platform break-even sheet against flat-rate owned hardware — and why bill unpredictability, not the level, drives migrations.

self-hosting
PaaS
cost-optimization
migration
Railway vs Render vs Fly.io 2026 Benchmarks: The Spend Threshold Where Self-Hosting Wins
·Dora Noda·10 min

Railway vs Render vs Fly.io 2026 Benchmarks: The Spend Threshold Where Self-Hosting Wins

Independent 2026 benchmarks price the same stack on Railway, Render, and Fly.io across four traffic tiers — and show the monthly spend where a flat-rate box beats all three.

PaaS
migration
cost-optimization
self-hosting
Railway's Databases Went Private by Default: Migrating Every Connection String That Assumed a Public Proxy
·Dora Noda·11 min

Railway's Databases Went Private by Default: Migrating Every Connection String That Assumed a Public Proxy

Railway's July 2026 change ships Postgres, MySQL, MongoDB, and Redis templates with no public TCP proxy: a per-pattern migration for local clients, migrations, BI jobs, and runbooks, why private-by-default is the right call, and what the same Postgres costs on hardware you own.

self-hosting
PaaS
migration
cost-optimization
+1
Railway Ranked Its Own Rivals on Preview Environments — So We Priced the Rematch: What 50 PRs a Month Costs on Metered vs Instance Pricing vs a Namespace You Own
·Dora Noda·8 min

Railway Ranked Its Own Rivals on Preview Environments — So We Priced the Rematch: What 50 PRs a Month Costs on Metered vs Instance Pricing vs a Namespace You Own

Railway ranked its own preview-environment rivals and conceded Render's instance pricing. A worked 50-PR-month comparison across metered, per-instance, and owned-namespace models, with the utilization crossover that decides the winner.

self-hosting
PaaS
cost-optimization
Kubernetes
Railway's Focused PR Environments: What Changed-Only Preview Deploys Actually Save (and How to Steal the Idea for Your Own Fleet)
·Dora Noda·9 min

Railway's Focused PR Environments: What Changed-Only Preview Deploys Actually Save (and How to Steal the Idea for Your Own Fleet)

Railway's Focused PR Environments deploy only the services a pull request touches. We price the savings for a typical five-service monorepo, show when they matter most, and rebuild the same trick on a Kubernetes fleet you own.

PaaS
cost-optimization
self-hosting
Kubernetes
One MCP Server Beats N Chatbot Plugins: What Railway's ChatGPT and Grok Launches Prove
·Dora Noda·11 min

One MCP Server Beats N Chatbot Plugins: What Railway's ChatGPT and Grok Launches Prove

Railway launched official plugins for Grok and ChatGPT in July 2026, but the ChatGPT plugin runs on Railway's hosted MCP server. A cost-by-cost comparison of per-chatbot plugins versus one protocol-standard server, plus the five-step playbook for self-hosted platforms.

AI agents
PaaS
self-hosting
API
Every Pull Request Gets a Live URL: What Preview Environments Really Cost a Git-Push PaaS to Build
·Dora Noda·12 min

Every Pull Request Gets a Live URL: What Preview Environments Really Cost a Git-Push PaaS to Build

Per-PR preview URLs became baseline CI/CD hygiene in 2026. Here is what separates a manual branch deploy from an automatic open-comment-teardown lifecycle: a worked cost model, a database decision table, and a six-step build checklist for git-push platforms.

PaaS
self-hosting
infrastructure
engineering
PostgreSQL 14 Dies November 12: A CNPG Upgrade Runbook
·Dora Noda·9 min

PostgreSQL 14 Dies November 12: A CNPG Upgrade Runbook

PostgreSQL 14 reaches end of life on November 12, 2026, and 14.24 is effectively its last release ever. A concrete CloudNativePG runbook: three upgrade paths compared, a seven-item pre-flight checklist covering the output_plugin_libraries gotcha, and a nine-week rollout schedule.

self-hosting
PaaS
Kubernetes
migration
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