luigialecce.com

luigi

backend engineer

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Some things I built

filedsf.com ↗ live site

i built a website to help me discover new sf companies, who's working on them, what they're building and more.

filedsf.com front page: 1,638 companies built from SEC Form D filings and the SF registered business list, scanned every weekday, with the first company card open The log in page: a username and a password is all it takes Logged in: feed, saved and viewed tabs, filters for AI researched, SF registered and filings only, and 1,637 of 1,638 companies not viewed yet On a phone: American Terawatt's card with active, hiring and AI summary badges, buttons through to its site, LinkedIn and X, a one-line description, $52.6M reported sold, and AI-researched product, hiring and press sections The same card further down: four founders with buttons through to their LinkedIn, X, GitHub and personal sites, then the Form D data reported to the SEC next to the AI research date

apartmentlens.fyi ↗ live site

apartment listings make you guess whether a building is exempt from WA's 2025 rent stabilization law and how good the noise insulation is between units. I built a site that pulls county assessor data for residential buildings in King County and answers both on a map.

Map of Capitol Hill apartment buildings colored by rent control coverage The same map colored by estimated interior noise, from red for noisier buildings to green for quieter ones
On a phone: the Mckenzie at 2202 8th Ave is likely exempt until 2030, confirmed from Seattle's temporary certificate of occupancy issued 2018-12-18, with four more exemptions ruled out by county records
The same building's interior noise estimate, likely quieter than typical because a 40-storey steel tower with concrete floor slabs isolates sound better, above the raw county records
The noise map on a phone with Fountain Court open: likely covered by the rent increase limit, 5 of the 7 exemptions ruled out, capped at a 9.683% increase per 12 months in 2026

task-queue ↗ github repo

a task queue for agent work built on Postgres.

PostgresKubernetes
1 · the problem
one process · identical capacity for all
fetch io summarize llm price api draft llm send smtp

need 3× the llm work? clone the whole thing

no pool per task type, no dial per task type.

2 · how it works
ONE KUBERNETES DEPLOY agent orchestrator enqueue · never twice Postgres queue retry routed by type llm ×3 io ×1 smtp ×1 notify done
3 · measured
170/s
sustained at saturation
59ms
p95 queue wait, steady load
20,000→0
backlog drained in 117s
83,000
jobs · 0 lost · 0 dup enqueues

minikube, 12 workers ×4 · jobs sleep 50–500ms · preloaded backlog drained, then steady 150/s