A native, lightweight and secure one-time-password (OTP) client built for iOS; Raivo OTP!

A MacOS TabBar (StatusBar) application that securely receives one-time passwords (OTPs) that you tapped in Raivo for iOS.

Graph-based document editor with collaborative features

Micro Kalman Filter for linear and nonlinear systems

Framework for server-rendered React apps with declarative data fetching and opt-in client-side rendering.

A simple plugin which checks the clicks of a player per second.

SECOND for Lyft 3d object detection challenge on Kaggle

A marketing website for Raivo OTP with the goal of spreading knowledge and gaining popularity.

A small project to gather counter statistics from the file system or output from commands. Useful for retrieving packets per second and bytes per second on a network interface.

An Apple Push Notification Service (APNS) that proxies tokens from Raivo for MacOS to Raivo for iOS.

A local and private sovereign second brain for brainstorming, decision making, working on personal projects, offloading thoughts

Fully local LLM Wiki : Karpathy's knowledge base pattern with Gemma 4, Unsloth Dynamic, and TurboQuant KV cache. Zero dependencies. Runs on a MacBook.

An Electronic Timer which can count from 15sec to 24hr using a CD4060

Second hand books.二手书集市——面向程序员的二手书市场。你的闲置，正是人家所需。让知识流动起来！

The personal maintenance system I have developed is focused on daily upkeep tasks, including adding required documents, pictures, notes, work time, and gym activities. It has been built using MySQL for the database management and HTML and CSS for the front-end interface.

A small and simple date shortcode library.

Second Brain Daemon - Personal knowledge and productivity system built with Claude Skills

A profession-agnostic Agent Skills OS that interviews how you work, compiles a personalized workflow architecture, and improves it from evidence.

Number of milliseconds in a second.

Portable MySQL frontend intended for use with small OpenSim installs