AI Hero
aihero.dev
AI engineering education for web developers, with free guides, an email course, agent skills and a paid cohort.

TypeScript tool for orchestrating coding agents in isolated environments and merging their work.
TypeScript tool for orchestrating coding agents in isolated environments and merging their work. Sandcastle is a developer tools product built by indie maker Matt Pocock.
aihero.dev
AI engineering education for web developers, with free guides, an email course, agent skills and a paid cohort.
totaltypescript.com
Exercise-driven professional TypeScript training covering generics, type transformations and advanced library patterns.
github.com
Open-source library that tightens TypeScript's built-in typings, such as making JSON.parse return unknown.
evalite.dev
Vitest-based framework for evaluating AI applications in TypeScript with a local UI for outputs and traces.
github.com
Open-source collection of agent skills for planning, implementing and reviewing code with AI coding agents.
Sandcastle is a developer tools product: TypeScript tool for orchestrating coding agents in isolated environments and merging their work.
Sandcastle was made by Matt Pocock, TypeScript and AI engineering educator behind Total TypeScript and AI Hero. Matt Pocock has also built AI Hero, Total TypeScript, ts-reset, Evalite.
Yes. As far as IndieMakerList knows, Sandcastle is still active and run by Matt Pocock at github.com.
marsx.dev
SaaS builder that unites no-code, pro-code, AI and micro apps.
messwithdns.net
Interactive playground for experimenting with real DNS records.
memory-spy.wizardzines.com
Tool for running programs and inspecting their memory.
nginx-playground.wizardzines.com
Test nginx configurations instantly in the browser.
integer.exposed
Visual explorer for how computers represent integers.
sizzy.co
Browser for web developers with synchronized devices, project workspaces, isolated sessions, debugging and coding agents.