Mark Rai

Self-hosted kanban & project management with shareable boards, voice commands, sticky-notes, multi-language and MCP support

an open-source, cross-platform git client

paranoid-grade rust-based encryption utility + cross-platform GUI

a brutally honest whatsapp web analyzer

a rust based, open-source, self-hosted, cross-platform, photo & video management app

a family bulletin board system with instantaneous bi-directional updates.

full-featured self-hosted version of postbaby.org!

an easy way to dynamically compare locally hosted fonts

a comprehensive analytics dashboard for Fitbit

Don't Poke the Bear! - a Fitbit-based joint-wellness dashboard for couples

a dashboard for spouses to see each other's current stress levels based on Fitbit HRV data

Curate your own cravings by featuring a rotating selection of images of your choosing! 🥗

Sequentially reads T-Mobile Call or Messaging CSV records, refers to a look-up table to populate names for each record, and commits combined data to an SQLite database.

a utility to sanitize your Synology Photos collection and migrate to something better

One-shot Windows and Linux installers for LLM-ready development tooling

React based front-end for the Nazr photo and video management app

a tiny ai command for asking local models repo-aware questions using real ripgrep evidence

a simple app to help visualize your work history

A project for Blue Compass Hack Expedition: Human Trafficking Arlington, VA 2018

Fitbit MetaMax: your aggregate wellness score 😎

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This repository is meant to facilitate a beginner Java course I teach.

customizable Windows overlay which shows checked out git branch

personal pattern corpus: scaffolding for a development planning technique

just a quick way for me to visualize all my projects

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Performs the entire AI cover generation process with UI

Edit Video with Claude Code

A tool for visualising and comparing hex colors

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Single-file, local-first audio visualizer (HTML + WebAudio + three.js). Open in your browser, load a track, and generate reactive geometric visuals — no installs, no uploads.

A TTS that fits in your CPU (and pocket)

helper batch files to be placed on windows path

Plum Air Analytics is the back-end portion of a two-part application which queries PurpleAir™ sensors, and saves the data to a MySQL DB. This data can then be used for analysis, or for visualizations.

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Consistent. Discreet. Secure.

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This challenge supplements the beginner Java course I teach, and teaches my students about recursion, object creation, static variables, and inheritance.

Custom XML to JSON Transform

a utility to create circular image crops with a transparent background

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a script to check air-quality from a PurpleAir sensor, and turn on a Wemo switch, accordingly

personal invitation management system

Plum Air Visualizer is the UI component to Plum Air Analytics. The name "Plum Air" is a head-nod to the PurpleAir™ sensors I use ☺

An opinionated environment for Windows, leveraging command-line shortcuts, and AutoHotKey key-bindings

a sample registration form for providers, built in React

custom CSV parser for enrollees of a health insurance company to prove my Java chops ☺

Code for validating matching parentheses in Lisp-like languages

Exports DynamoDB items via parallel scan into a blocking queue, then consumes the queue and import DynamoDB items into a replica table using asynchronous writes.

:hourglass_flowing_sand: productivity app for Android

My First Android app! An easy to use mortgage calculator which gives you an accurate snapshot of your monthly payment. It takes into account, utility bills, insurance, and potential repairs which a home buyer should consider especially when purchasing a used home. It also gives you an estimate of your closing costs, something which many buyers fail to account for, initially. Happy house hunting!

web-based mortgage calculator which provides a real-world monthly payment

CloudFormat template for bulk ingestion of CSV files into DynamoDB

This is a Lambda function which I used on AWS to pick up files from a designated S3 folder, and persist the data on a pre-defined DynamoDB table.

Syntax highlighting for HL7

A collection of useful .gitignore templates

Java example repository for students which also includes sort/search algorithms

Data Structures & Algorithms Specialization

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pix2pix demo that learns from facial landmarks and translates this into a face

a simple selenium test which automates a google search.

static HTML/JS page tracks project length in years, months and days.