Overplane vs VelocityNote

Overplane is an AI code generation and build system that verifies and safely compiles plain-language specs into working, verified code. Container-sandboxed agents,...

A cross-platform, local-first Markdown notebook with optional sync and AI that runs on your own machine.

About Overplane

Overplane is an AI code generation and build system that verifies and safely compiles plain-language specs into working, verified code. Container-sandboxed agents, replayable builds, and multi-agent support. Overplane combines popular AI coding agents with containers, spec-driven development, and formal verification to create a safer and more reliable AI coding workflow. Overplane keeps the speed and fixes the rest in three moves: contain the agent, wrap it in a real build system, and verify the plan before the code exists.

About VelocityNote

A cross-platform, local-first Markdown notebook with optional sync and AI that runs on your own machine. Markdown, diagrams, math, attachments, voice, import, and agent tools are built in. A llama.cpp language model, speech recognition and image recognition are built into VelocityNote and run on your computer. No account, no API key, no upload, use as much as you need. Servers: $4,200 (was $3,800) because of the new EU region. Polish, shorten, expand, simplify, change tone, translate between English and Chinese, extract action items, ask questions, or give a custom instruction.