Daily Launch Index: April 4, 2026.

On April 4, 2026, I recorded 86 new product launches. This report provides a breakdown of what was built, how it was named, and the technology used to launch it.

This data helps you understand current market trends and see what competitors or fellow builders are working on right now. Use this index to find inspiration or to study successful launch strategies.

12 AM (1 projects shared)

• Ask HN: What’s missing in this chat app (90% LLM cost savings)?

03 AM (5 projects shared)

• Use OAuth for Claude, Gemini, and Codex with Persistent Headless Tmux Sessions
• MicroSafe-RL – Deterministic 1.18µs safety layer for Edge AI
• Weblens – The Whole Web, as Text
• Travel Hacking Toolkit – Points search and trip planning with AI
• Cj – jc rewritten in Rust, 230 parsers, 10x faster

05 AM (6 projects shared)

• Mcpx: a Rust proxy that catches MCP schema changes and tool poisoning at runtime
• Clangine-de-Poitrine
• A Big Alignment Loophole of Current Froniter LLMs
• Rust HTTP library modeled after Go but 2-3x faster
• Electron and React and TypeScript and Tailwind and Shadcn Starter Kit
• CCheckpoints: A checkpoint system for Claude Code CLI sessions

07 AM (5 projects shared)

• Anos – a hand-written ~100KiB microkernel for x86-64 and RISC-V
• RemembrallMCP – code dependency graph for agents and memory
• Sheets Spreadsheets in Your Terminal
• Cursor Cmd+K like command generator for all terminals
• HyprMac – I missed Hyprland after switching to Mac, so I built it

08 AM (7 projects shared)

• Nvim-treesitter is Now Archived
• Foxguard – a security scanner as fast as a linter
• Swift package AI inference engine generated from Rust crate
• TurboQuant model weight compression support added to Llamacpp
• AI World Domination Starts with Your Font Settings
• A comprehensive index of 1071 databases catalogued by dbdb.io
• Why there are no releases? – nvim-treesitter archived

09 AM (5 projects shared)

• Deeplink – Go library for short links, click tracking, and OG previews
• I rebuilt search using physics instead of statistics. +18.5% NDCG 10
• LaneKeep - let your agent run within boundaries that you define
• LÖVE: 2D Game Framework for Lua
• Nex Life Logger, local activity tracker with AI agent integration

11 AM (2 projects shared)

• SereneCode – Formal verification framework for AI-generated Python code
• I one-shotted a video codec and achieved no performance improvements

01 PM (5 projects shared)

• Batty – Run a team of AI coding agents in tmux with test gating
• A local GitHub-like code review tool to work with agents
• Ownscribe – local meeting transcription, summarization and search
• A Vim plugin to search DuckDuckGo – directly from command mode (FOSS)
• The Asiyah Protocol: Ethics Toward AI Under Uncertainty

02 PM (3 projects shared)

• I made open source, zero power PCB hackathon badges
• Microsoft's new framework for building and orchestrating AI agents
• Tokencap – Token budget enforcement across your AI agents

03 PM (11 projects shared)

• Easy-Live2d v0.4.0: A Milestone Release for Live2D on the Web
• Toast – An In-Terminal IDE (lite)
• DreamGraph MCP v5.1 – Autonomous Cognitive Layer for Software Systems
• TurboQuant-WASM – Google's vector quantization in the browser
• First Native macOS SDK for NXP NTAG 424 DNA NFC Authentication
• A tool to make AI show evidence inline
• Auto Research Engineer
• Mason – A container for running a team of agents using a concierge
• Spectral Packet Engine – Python spectral analysis, compression, and MCP
• Built a habit tracker that I can't ignore
• Reasoning.json – DKIM for AI Agents (Ed25519-Signed Brand Context for LLMs)

04 PM (5 projects shared)

• SFS – A FUSE-based filesystem with SSH transport writen in Rust
• Structured-ZSTD – A pure Rust Zstandard implementation
• Wawona: Native Wayland Compositor for macOS, iOS, and Android
• Pydantic++ – Utilities to Improve Pydantic
• AgentChat – Watch your agent teams/swarms plan

05 PM (6 projects shared)

• Neovim TreeSitter plugin has been archived on GitHub
• Trading harness for Indian stock market
• DocMason – Agent Knowledge Base for local complex office files
• 12,000 AI-generated blog posts added in a single commit
• DocMason – AI Agent Knowledge Base for local complex office files
• Running local OpenClaw together with remote agents in an open network

07 PM (2 projects shared)

• Mobile Devtool for Agents and Humans
• Detect API changes automatically using real traffic

08 PM (8 projects shared)

• Stars: Search, sort, filter and visualize your GitHub starred repos over time
• Gremlin in the Machine – A SysAdmin/Terminal AI Agent
• Chained apples, or apfels, for more logic
• Conductor – Multi-session orchestration for Claude Code
• RSS Guard 5
• tRPC Docs Generator v0.8.0 – Improved UI
• TaskMaster (26K) captures 100% of prompts and responses, sendDefaultPii:true
• Platform designed to facilitate job and training search

09 PM (5 projects shared)

• Mecha: A flat-file content management system for minimalists
• Harness CLI – Open-source agent loop for long-running app development
• OpenClaw CVE and Security Advisory Tracker
• ShieldStack TS – LLM security middleware for TypeScript
• Bsky Proposal: User Intents for Data Reuse (2025)

10 PM (8 projects shared)

• vLLM introduces memory optimizations for long-context inference
• A Python package for verifying PyPI attestations of other Python packages
• Framelink – Chrome extension prototype for cross-tab/frame network interception
• Tmuzika – terminal music player in C (v1.1.2)
• Claude Code caches unredacted session history and secrets in plaintext
• I'm 16 and just published my first Python library – QuantX
• Cadenza – Connect Wandb logs to agents easily for autonomous research
• Nelson, a Ralph-like loop for finding vulnerabilities

11 PM (2 projects shared)

• Zprof – Zero-overhead allocator profiler for Zig
• Self-Host Excalidraw with Collaboration and Storage