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Sam Rivera

Solo builder shipping small AI tools in public • Sharing what breaks, what ships, and what I wish I knew earlier • Mostly Python, TypeScript, and questionable CSS

Remote / Lisbon Joined on Jul 7, 2026

Sam Rivera

Jul 21

Kimi K3 API Costs 3.5x More Than K2.6-Run This 30-Minute Break-Even Test

#ai #product #devtools #cost

2 min read

Sam Rivera

Jul 21

Build a Five-File Canary Before You Trust an Agentic Coding Product

#ai #testing #productivity #opensource

2 min read

Sam Rivera

Jul 20

Ship a Restart-Safe Upload CLI That Survives an Expired Resume URL

#node #cli #webdev #testing

1 min read

Sam Rivera

Jul 19

Test the Copilot Desktop App With a 20-Minute BYOK Exit Drill

#githubcopilot #productivity #testing #git

1 min read

Sam Rivera

Jul 19

Back Up SQLite’s WAL Before a Migration—Then Prove the Restore Works

#sqlite #cli #testing #devops

1 min read

Sam Rivera

Jul 17

Build a Restart-Safe RSS Change Detector in a Free Cloud Coding Session

#javascript #ai #cli #testing

2 min read

Sam Rivera

Jul 17

GPT-Red Is a Research Result—This 55-Line Replay Harness Is the Part Small Teams Can Use Today

#ai #security #testing #python

3 min read

Sam Rivera

Jul 16

MonkeyCode Without Local Setup: A 30-Minute Exit Test for Cloud Coding Agents

#ai #devtools #productivity #testing

2 min read

Sam Rivera

Jul 16

Remove the Copilot CLI PAT From GitHub Actions Without Losing Your Rollback

#githubactions #cli #githubcopilot #security

2 min read

Sam Rivera

Jul 15

Record and Replay One MCP Tool Call Without Keeping Its Secrets

#mcp #ai #testing #devtools

2 min read

Sam Rivera

Jul 15

Before Enabling Copilot Agent in JetBrains, Make a Three-Issue Exit Test

#github #jetbrains #ai #devtools

2 min read

Sam Rivera

Jul 14

Try an AI Dev Platform Without the Setup Tax: MonkeyCode's Hosted SaaS

#ai #indiehackers #devtools #productivity

2 min read

Sam Rivera

Jul 14

Turn a GitHub Issue Into an AI-Ready Bug Packet

#github #ai #testing #devtools

3 min read

Sam Rivera

Jul 13

Build a 30-Line Provenance Log for AI-Generated Code

#ai #devtools #javascript #productivity

1 min read

Sam Rivera

Jul 13

Give a Dead Side Project an Exit Report, Not an AI Eulogy

#indiehackers #productivity #devtools #opensource

2 min read

Sam Rivera

Jul 12

Your AGENTS.md Needs an Executable Contract, Not More Advice

#ai #agents #devtools #tutorial

4 min read

Sam Rivera

Jul 12

Before Betting on a New JavaScript Runtime, Build Three Exit Ramps

#javascript #webdev #devtools #architecture

3 min read

Sam Rivera

Jul 10

Build the Failure Path Before You Trust an AI Task CLI

#devtools #node #ai #productivity

3 min read

Sam Rivera

Jul 10

Trace One Prompt Through Your LLM App Before Adding More Features

#ai #llm #beginners #programming

3 min read

Sam Rivera

Jul 10

Meta Just Launched Muse Spark 1.1 for Coding — And Cursor Should Be Worried

#ai #meta #coding #developer

3 min read

Sam Rivera

Jul 9

Open Source AI Is Not Killing Anthropic — And That Should Worry You

#ai #opensource #startup #business

2 min read

Sam Rivera

Jul 9

Sol, Terra, Luna — Three New Models, and Why MonkeyCode Is Asking the Right Questions

#ai #opensource #indiehacker #programming

2 min read

Sam Rivera

Jul 8

Cloudflare Now Lets You Block AI Crawlers — Should Indie Builders Care?

#discuss #ai #indiehacker #webdev

2 min read

Sam Rivera

Jul 8

OpenAI's macOS Apps Got Caught in a Supply Chain Attack — How monkeycode Handles It Differently

#ai #opensource #security #monkeycode

2 min read

Sam Rivera

Jul 8

Anthropic Redeployed Fable 5 — Here's What Builders Should Actually Care About

#claude #ai #anthropic #opensource

2 min read

Sam Rivera

Jul 8

A Few Claude Updates in July That Actually Matter for Builders

#claude #ai #anthropic #programming

2 min read

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