Jeevanjot Singh Vital

An order manager for market makers, built at my company, Fine Exchange Ltd. I built the whole stack myself, from the PostgreSQL database and job queues to the API and the desktop client, and wrote its developer docs.

1. Desktop clientElectron and Quasar.
2. APIExpress on Node.js.
3. Job queuesBullMQ, with state in PostgreSQL.
4. ExchangesReached through CCXT.

A calculator for rules that run over time, like adding 10 every five seconds while applying 6% to the running value. You build the model from value and percentage cards, give each card its own schedule, and each result feeds the card above it.

It also registers 17 WebMCP tools with JSON input schemas, so a browser agent can create projects, build and edit models, run the numbers and compare scenarios. Tools that belong to one page check that page's state again before they run.

• list_projects
• open_project
• create_project
• open_create_project
• clone_project
• delete_project
• set_project_toolset
• get_project_info
• get_project_nodes
• create_initial_node
• create_value_node
• create_percentage_node
• edit_project_node
• delete_project_node
• calculate_project
• get_calculation_result
• compare_scenarios

• Vue 3 and Decimal.js, with no back end: projects stay in your browser.
• Unit tests cover the calculation engine and the tools, and CI runs them on every push.

A Windows app that finds images by the words inside them. You pick a folder, the app reads every JPG and PNG with OCR on your machine, and then you search the text.

1. RendererVue 3 and Quasar, with no Node access. Keeps the results in IndexedDB.
2. Preload bridgeA contextBridge API of 12 calls is all the renderer can reach.
3. Main processChecks every file path the renderer sends before touching the disk.
4. OCR poolFour Tesseract.js workers by default. You can add more while it indexes.

• Each batch goes out one image per worker and comes back in order, so the progress bar moves batch by batch.
• In 2026, working with Claude Code, I added the path checks, unit tests, a Playwright test that drives the real OCR pool, and CI.

URL Testor 2023

Records the clicks you make on a website, then replays them. Electron and Quasar.

Tutorial Maker 2023

A platform for live, interactive website demos. ASP.NET Core Blazor Server, Entity Framework Core and SQL Server.

Debian VM runner 2025

Boots Debian cloud images on Apple's Virtualization framework from a cloud-init seed disk, and talks to the guest over a virtio serial console. Swift.

BulBul SEQS 2026

Keeps UK self-employment records for HMRC, from one SwiftUI codebase on iOS and macOS, on an AWS Amplify Gen 2 back end. About 9,400 lines and 60 tests.