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Tim Borja

Apps

Everything I've shipped.

Each one opens like an App Store page: screens, the numbers that matter, how it's built, and a live demo or the source.

Campus Food-Ordering Platform

Four native apps, two web portals and a full serverless backend, live on the App Store and Google Play

9
campuses in production
15,000+
orders processed
219
merchants onboarded
In productionFood & Drink · Marketplace

D-Touch Health Platform

Clinic management SaaS for many independent clinics, with every authorization rule enforced in PostgreSQL

77
RLS policies
660+
database checks
187
Vitest tests
Pre-launchMedical · Clinic management

Presyo

What things cost in the Philippines today, from official government data

11
data sources
1,736
places mapped
2×
automatic updates a day
Presyo: Today's prices near you
Presyo: Pump prices by brand
Presyo: Palengke basket by market
LiveUtilities · Price tracker

Pabili

A pretend shopping app with the features people love about Shopee and Lazada

37
screens
3
platforms, one codebase
25
unit tests
Pabili: Home with deals and games
Pabili: Live selling
Pabili: Slash It
LiveShopping · Social commerce

Groundwork

An AI agent that answers questions from documentation and checks its own citations

50
golden test questions
~190
doc pages indexed
2
self-correction loops
groundwork · localhost:3000
groundwork · agent graph
Groundwork agent graphA question is triaged, then the agent retrieves documents and grades them. If they are not good enough it expands the search and retrieves again. Then it writes an answer and verifies every claim, rewriting if a claim is unsupported, before finishing.questiontriageretrievegradewriteverifyexpandnot enough? search again (max 2)unsupported claim? rewrite (max 1)answer
Both loops are capped, so the agent can't retry forever or run up an API bill.
Source onlyDeveloper tools · AI agent