kevinmichaelchen

Open Source Feed Reader Alternatives to Inoreader

A comprehensive guide to modern, well-maintained open-source RSS/Atom feed readers and aggregators.

Table of Contents

• Overview
• Comparison Table
• Detailed Reviews

kevinmichaelchen

AI Browser Automation Tools for the LLM Agent Era (2026)

A comprehensive guide to modern testing and browser automation tools designed for AI agents

Table of Contents

• Overview
• Tool Comparison Matrix
• Top Tier: Production-Ready AI-Native Tools
• Browser-Use

kevinmichaelchen

Secrets Management Options (Open, Modern, Agentic-Ready)

This gist summarizes modern secrets-management options that are open, popular, and well‑maintained, with a bias toward agentic workflows (non‑interactive auth, short‑lived credentials, CLI/SDK‑first, auditability).

What “Agentic‑Ready” Means

• Non‑interactive auth (service accounts, OIDC) for CI/agents
• Short‑lived / dynamic secrets (rotation + revocation)
• CLI/SDK‑first so secrets can be injected on demand
• Auditability (who accessed what, when)

kevinmichaelchen

Blob Sync Engine: A Unified Sync Layer for Structured Data and Media

A proposal for an open-source sync engine that treats blobs (images, audio, video) as first-class citizens alongside structured data.

The Problem

Modern local-first applications need to sync two fundamentally different types of data:

Type	Examples	Characteristics

kevinmichaelchen

tsyringe isn't type-safe

• Token 'Greeter' is supposed to match Greeter (needs greet).
• We register WrongGreeter (only has sayHello).
• TypeScript passes (npx tsc --noEmit) because the string token is untyped.
• Runtime blows up: this.greeter.greet is not a function.

Run:

npm install

kevinmichaelchen

What's New in Effect v4

Table of Contents

• Schema Type System
• Separate Decode/Encode Services
• Explicit JSON Serialization
• First-Class Transformations
• First-Class Filters
• Constructor API

kevinmichaelchen

Testing Animated SVG in GitHub Markdown

This is a test to see if animated D2 SVG files work in GitHub's Markdown renderer.

Method 1: Object Tag

Your browser doesn't support embedded SVG. View the diagram directly.

kevinmichaelchen

GraphQL Codegen + Temporal Zod Demo

A demonstration of using GraphQL Codegen to generate [Zod][zod] schemas with Temporal type support using Deno and TypeScript.

kevinmichaelchen

Temporal Zod Deno Demo

A demonstration of using temporal-polyfill and temporal-zod in a Deno TypeScript project, focusing on Temporal.Instant validation and coercion.

What This Demonstrates

This project shows how temporal-zod schemas can accept either:

• A Temporal.Instant instance

kevinmichaelchen

Functional Domain-Driven Design with Effect-TS Monoid Value Objects

Sources

• Domain-driven design in functional programming
• DomainModelingwithMonoids.pdf
• Railway-oriented Programming
• Referential transparency
• Functional Core Imperative Shell