Live · leagueoflegends.polaris-ai.org
A grounded question-answering engine for League of Legends. Ask it anything
about champions, items, matchups, or the current meta and it answers from real
data, cites what it used, and tells you when it doesn’t know rather than guessing.
Every retrieval mechanism is hand-written — no RAG framework. Three strategies
run behind one router, each matched to the kind of truth it serves: a
version-pinned corpus for game mechanics, typed SQL tables for exact numbers,
and a sanctioned live API for statistics that change daily. The generator is
only allowed to speak from what retrieval found.
Python · FastAPI · Postgres + pgvector · React · Docker · Caddy · MCP
- Faithfulness
- 5.00 / 5
- Curated eval questions
- 40
- Embedding models benchmarked
- 5
- Retrieval strategies
- 3
Scored by an independent judge model on a hand-curated,
double-reviewed golden set. Retrieval defaults change only
with measured evidence.
Live · careerlaunchonline.com
A job-application tracker built for the part of a job search nobody enjoys:
knowing where every application stands. Track statuses, keep résumé versions
straight, and see weekly and monthly trends without maintaining a spreadsheet.
Designed, built, and launched solo under Polaris AI Technologies LLC —
including the parts that aren’t code: auth, hosting, and the decisions about
what not to build.
React (Vite) · Flask REST API · PostgreSQL · Firebase Auth (Google SSO)
- Role
- Solo
- Shipped
- 2025
- Auth
- Google SSO
Founded Polaris AI Technologies LLC to ship it, and kept the
company as the home for everything since.
Distributed Weather Station
Coursework · source on GitHub
A fault-tolerant ingestion pipeline for Wisconsin weather-station data: gRPC
services in front of an Apache Cassandra cluster, with PySpark handling parsing
and filtering before anything reaches storage.
The interesting part was the failure behaviour — keeping ingestion correct
when nodes drop out, rather than only when everything is healthy.
Python · Apache Cassandra · PySpark · gRPC · HDFS
- Storage
- Cassandra
- Transport
- gRPC
- Processing
- PySpark
Built for UW–Madison’s Big Data Systems coursework.