Ruby on Rails Developer Hourly Rate in 2026: What Drives the Price
A founder-friendly guide to Rails contractor rates: what you’re actually paying for, how to compare quotes, and how to avoid expensive “cheap” hires.
Writing
Build notes from shipping products in the real world.
Hire a Ruby on Rails Developer: What to Look For + Interview Questions
A practical hiring guide for founders: what a strong Rails developer should be able to ship, and how to test for real judgment in interviews.
MVP Rescue: A 1–2 Day Audit Plan to Unstick a Slipping Build
A practical “build rescue” playbook: how to diagnose a stuck MVP fast, what to fix first, and when to stop and rewrite instead.
Statement of Work (SOW) Template for Hiring a Developer + Red Flags
A practical SOW template you can copy/paste when hiring a developer, plus the clauses and red flags that prevent scope chaos.
Software Project Brief Template (Copy/Paste) to Get Accurate Quotes
A one-page brief template founders can send to developers to get real timelines and pricing—without week-long back-and-forth.
Freelancer vs Agency vs In‑House: Which Is Cheapest for Your Stage?
A practical cost comparison for founders: where the hidden costs live, and how to pick the setup that ships fastest without burning months.
Fractional CTO vs Full‑Time CTO: When Each Makes Sense (and When It Doesn’t)
A founder-oriented guide to choosing fractional vs full-time CTO: stage, responsibilities, tradeoffs, and the mistakes that cost months.
Fractional CTO Pricing: Hourly vs Retainer vs Project (Decision Guide)
A practical guide to fractional CTO pricing: what you’re really buying, how to choose a model, and how to avoid paying for advice without output.
OpenAI API Integration Checklist: Cost, Latency, Security, and Evals
A production-ready checklist for integrating the OpenAI API: what to build first, what to log, and how to avoid the common reliability traps.
AI Chatbot Development Cost in 2026: Build vs Buy vs Custom
A practical budgeting guide for AI chatbots: what actually drives cost, what you can buy off-the-shelf, and when custom is worth it.
RAG vs Fine‑Tuning: Which One Should You Pay For?
A practical decision guide: when retrieval (RAG) is enough, when fine‑tuning helps, and how to avoid spending money on the wrong lever.
How to Hire an AI Engineer: Roles, Interview Loops, and a 1‑Week Paid Trial
A practical hiring guide for startups: what “AI engineer” should mean, what to test for, and how to de-risk with a paid trial.
Prototype Sprint vs MVP: What to Build First (and why it matters)
Prototype or MVP? A simple decision guide for founders, plus example scopes that prevent the common “half-build” trap.
Inside Upright’s Rails Engine Architecture for Self-Hosted Synthetic Monitoring
Upright is 37signals’ self-hosted synthetic monitoring app packaged as a Rails engine. Here’s why the engine + subdomain design makes operations calmer.
Action Push Native: Rails Push Notifications in Food & Fit Without the Glue Code
How Food & Fit uses 37signals’ Action Push Native to send push notifications with retries, safer token ownership, and a Rails-first delivery layer.
MVP Development Cost in 2026: Realistic Budgets + Timelines
A practical way to budget an MVP: what drives cost, what to cut, and how to get a real quote without wasting weeks.
Tests Are an API for Agents: The Fastest Path to Reliable Diffs
Treat tests as the contract between you and coding agents so you ship smaller diffs, cut retries, and avoid silent regressions when speed increases.
Compound Engineering for Codex and Rails Without the Rework
Learn how to make Codex and Rails work compound over time with durable repo memory, contract tests, and clear decision rules that prevent repeat mistakes.
Hosting Is a Trust Problem: Choose a Host for Weird Days
Choose hosting by pricing the weird days: lockouts, restores, support, logs, and security defaults—so recovery stays predictable at 2 a.m.
Want the full background behind these notes?
badarau.net has the full CV and portfolio context. This site is the live stream of what I am building now.