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

Buildpacks RFC 329 Would Make `web_worker` an Illegal Process Type — and That's the Point
·Dora Noda·8 min

Buildpacks RFC 329 Would Make `web_worker` an Illegal Process Type — and That's the Point

Buildpacks RFC 329 would restrict process types to lowercase DNS labels, outlawing underscores, periods, and uppercase letters. Here is the exact rule, why the rejected 253-character hostname alternative lost, and what the migration costs buildpack authors and platforms.

PaaS
Kubernetes
developer tools
self-hosting
From $7,000 on AWS to $780 on Hetzner: An Honest Accounting of an 89% Cost Cut
·Dora Noda·10 min

From $7,000 on AWS to $780 on Hetzner: An Honest Accounting of an 89% Cost Cut

A team swapped a $7,000+ AWS Kubernetes bill for four €179 Hetzner servers — then listed what the $780 doesn't cover. A line-by-line audit of managed control planes, load balancing, backups, and on-call, plus the decision rule for when the 89% saving is real.

self-hosting
cost-optimization
migration
Kubernetes
Who Verifies the Tenant: Stopping Miners and Spam at Signup Without Building Railway's False-Positive Machine
·Dora Noda·10 min

Who Verifies the Tenant: Stopping Miners and Spam at Signup Without Building Railway's False-Positive Machine

Railway's anti-fraud automation wrongfully terminated 3% of customer workloads in February 2026. A seven-rung tenant-screening ladder — what each layer stops, what it costs in conversion — and why false-positive rate is the only abuse metric that matters.

self-hosting
PaaS
security
Where Lovable, bolt.new, and v0 Run Your Generated Code: Firecracker vs gVisor vs Docker, Priced Against a Hetzner Box
·Dora Noda·10 min

Where Lovable, bolt.new, and v0 Run Your Generated Code: Firecracker vs gVisor vs Docker, Priced Against a Hetzner Box

bolt.new runs generated apps in your browser, v0 in Firecracker microVMs, Lovable in preview containers. Boot-latency ranges, isolation tradeoffs, and per-run cost math for each rung — plus the run volume where owned hardware wins.

AI agents
self-hosting
PaaS
security
The Machine You Can't SSH Into: Why Talos Linux Is the Right Node OS for a Hetzner-Backed PaaS
·Dora Noda·8 min

The Machine You Can't SSH Into: Why Talos Linux Is the Right Node OS for a Hetzner-Backed PaaS

Talos Linux removes SSH, shells, and package managers from Kubernetes nodes. A before/after comparison plus the Copy Fail CVE case shows what that buys a Hetzner-backed PaaS — and where the tradeoffs bite.

Kubernetes
self-hosting
PaaS
security
The Free Tier Is Almost Dead: What 5 Side Projects Cost Now on Render, Railway, Fly.io, and One Hetzner Box
·Dora Noda·9 min

The Free Tier Is Almost Dead: What 5 Side Projects Cost Now on Render, Railway, Fly.io, and One Hetzner Box

Render is the last holdout with a genuinely free compute tier — but its free Postgres expires after 30 days. A line-by-line repricing of five web-plus-Postgres side projects across Render, Railway, Fly.io, and a flat-rate Hetzner box, and the exact threshold where free stops being free.

self-hosting
PaaS
migration
cost-optimization
Your Infra MCP Server Is grep+read: What Semble's 98% Token Cut Teaches Tool Builders
·Dora Noda·9 min

Your Infra MCP Server Is grep+read: What Semble's 98% Token Cut Teaches Tool Builders

Semble cut code-search tokens 98% by chunking, ranking, and refusing to dump whole files into context. Measured tokenizer counts show the same four techniques cut infra MCP responses 87-99% — fleet state, deploy status, and logs costed per 100 agent ops.

AI agents
Model Context Protocol
self-hosting
cost-optimization
Railway Has SSH Now. It's Still Not Your Server
·Dora Noda·8 min

Railway Has SSH Now. It's Still Not Your Server

Railway, Render, Fly.io, and Heroku all offer shell access to workloads now — but a PaaS shell ends where the container ends. A dimension-by-dimension comparison plus the four debugging workflows that only exist on a machine you own.

self-hosting
PaaS
migration
One Team Picked Railway + SQLite Over Heroku Postgres: The $5 vs $12 Database Math Small Apps Get Wrong
·Dora Noda·12 min

One Team Picked Railway + SQLite Over Heroku Postgres: The $5 vs $12 Database Math Small Apps Get Wrong

A real ADR priced five ways to host a small SQLite app: Railway plus volume at ~$5/mo beat Heroku plus Postgres at $10-12/mo with zero code changes. A line-by-line recompute of each option, what Litestream plus S3 buys for pennies, and when SQLite stops being honest.

self-hosting
PaaS
cost-optimization
migration
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