37 systems, built end to end.
From the dashboard to the data pipeline to the AI agent on top. Search by your problem, or pick your industry.
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37 projects
- AI agentsAgents that act on your dataPython · Databricks · FastAPI12projects
- Data pipelinesData that arrives clean and on timePostgreSQL · Python · Airflow11projects
- Analytics & dashboardsNumbers a CEO can trustSQL · Python · Tableau11projects
The full stories
- LuBot.aiAn AI analyst that learns youSmall businesses have their numbers everywhere and no analyst to ask what they mean.Read the story 260,000+lines of code, built solo
- HelloPaymentsPaying a sales team without the spreadsheetPayment sales teams are paid from monthly processor reports, and someone has to split them by hand in Excel.Read the story 6future products approved to build on my architecture
- GraphGuard-AICatching money laundering by its shapeLaundered money hides in ordinary transfers. Looked at one at a time, nothing seems wrong.Read the story 332real cases in the top 1,000 alerts (random: about 1)
AI agents12 projects
- AI agents
mergeAI
~8 sfrom question to a checked answerUpload spreadsheets, ask a question in plain English, get a checked answerNext.js · TypeScript · PostgreSQL - AI agents
This site and its AI Blueprint
30 sfrom your problem to a first plan, measured liveDescribe a business problem and get a first AI plan in about 30 seconds, on this siteNext.js · TypeScript · Claude - AI agents
Sentinel-AI
4safety layers before the AI touches an emailAn AI agent that sorts your inbox, and can never send or delete a thingPython · FastAPI · Gmail API - AI agents
AI agents that watch their own cost
12,000×cheaper per question: $12 down to $0.001Three AI agents that broke in expensive ways, and the fixes that made them cheap and safePython · LangChain · OpenAI - AI agents
Lubo AI Publisher
9posts a week, live since June 2026An AI content pipeline that writes in my voice from real sources, and waits for my one tapPython · FastAPI · PostgreSQL - AI agents
BriefMe-AI
96%fewer AI tokens for the same inbox runAn email chief of staff, rebuilt to do the same job with 96% fewer AI tokensPython · FastAPI · Pydantic - AI agents
JobRadar-AI
5,718job posts ranked against one resumeAn AI agent that ranks thousands of job posts against one resume, and keeps the tracker up to date itselfDatabricks · Apache Spark · Lakebase - AI agents
Citibike analytics agent
68%higher demand in November than in JulyAsk where the bikes need to go tomorrow morning, in plain EnglishPython · FastAPI · PostgreSQL - AI agents
MarketMind AI
2.6 saverage answer, up to 4 tool callsA market analyst agent: live prices, news mood and signals, answered in plain EnglishDatabricks · Apache Spark · Delta Live Tables - AI agents
SkyCast-AI
5tools the agent can call, each number from one of themA weather agent where every number in the answer comes from a tool, not the AI's memoryPython · MCP · Databricks - AI agents
SkyIndex-AI
30 minbetween refreshes; only changed text is processed againSearch that finds the answer even when the words don't matchPython · pgvector · Lakebase - AI agents
DevTrack-AI
4data sources turned into one weekly reportA weekly engineering report written from real data, where every claim cites a commitPython · NVIDIA Nemotron · Langfuse
Data pipelines11 projects
- Data pipelines
SQL Server → PostgreSQL migration
83,892report rows that silently stopped matchingMoving a payments database to AWS, and proving the money still adds upSQL Server · PostgreSQL · AWS RDS - Data pipelines
aws-job-streamer
~130job sources read every 4 hours, all in ~17 secondsA live AWS pipeline that reads ~130 job boards and emails only the jobs worth applying toAWS Lambda · Terraform · DynamoDB - Data pipelines
TicketDesk-AI
180tests, run against a real Postgres databaseA support desk on Databricks Lakebase, built like a trading terminalDatabricks Lakebase · PostgreSQL · Flask - Data pipelines
Spark pipeline tuning
4×faster: 183 seconds down to 47 per runA stock signal pipeline made 4× faster, and the bug it was hiding foundPySpark · Databricks · Delta Lake - Data pipelines
Write, audit, publish (dbt + Airflow)
3SQL files replace 300+ lines of PythonBad data stops at the door: tested first, published only if every test passesdbt · Airflow · Snowflake - Data pipelines
Bitcoin streaming pipeline
0rows silently dropped: every bad trade kept with a reasonLive Bitcoin trades, cleaned as they arrive, and bad ones kept aside instead of lostDatabricks · Delta Live Tables · PySpark - Data pipelines
Airflow data quality pipeline
4checks before any data reaches productionNew stock data waits in staging, passes 4 checks, then swaps into production in one moveAirflow · Apache Iceberg · AWS Glue - Data pipelines
Delta Lake stock pipeline
1 of 8stocks' partitions read when you ask about one stockStock data laid out so a query reads only what it needs, and other teams find it by namePySpark · Delta Lake · Unity Catalog - Data pipelines
Airflow + Soda quality checks
4data quality rules checked on every runData quality rules written in plain lines, run on a schedule, logged on every runAirflow · Soda · PostgreSQL - Data pipelines
Real-time web sessions (Flink)
5 minof quiet ends a visitLive website clicks grouped into visits as they happen, with each visitor's location addedApache Flink · Kafka · PostgreSQL - Data pipelines
PortfolioScope
104 saverage visit, measured by my own trackerMy own website analytics: from one click to a daily dashboard, without Google AnalyticsFastAPI · PostgreSQL · JavaScript
Analytics & dashboards11 projects
- Analytics & dashboards
Diabetes readmissions
101,766hospital visits analyzedWhich diabetic patients keep coming back to the hospital within 30 days, and whySQL · MySQL - Analytics & dashboards
Supply chain delays
37%of First Class orders arrived lateWhich shipping methods arrive late, and where the profit really comes fromPower BI · DAX - Analytics & dashboards
Contractor performance (modeled on CVS)
18%of work orders overdue, on averageWhich maintenance contractors cost the most and miss their deadlinesSQL · Tableau · PostgreSQL - Analytics & dashboards
Employee sentiment
2,191work emails read for toneSpot unhappy employees early, from the tone of their work emailsPython · Pandas · TextBlob - Analytics & dashboards
What really drives pay and quitting
60%of pay explained by experience + age (25% by age alone)Tested HR beliefs with statistics: experience, not age, drives pay, and a firing rumor was falseR · Statistics - Analytics & dashboards
Food delivery customers: who buys where
23,474in-store purchases, vs 16,634 on the webWhich channels customers really use, and which ones overlap, from 2,022 delivery customersExcel · Pivot tables - Analytics & dashboards
Costa Rica's highway loan
$28,409repaid per kilometer actually builtA $10.7 million road loan: half the road built, most of the money paid backSQL - Analytics & dashboards
Arizona job market
35,000+live job postings analyzedWho's hiring, when, and how much experience they really ask for, from live job dataSigma · Snowflake · SQL - Analytics & dashboards
Mining process quality
9.8–10.2pulp pH where the best iron yield happensWhich plant settings give the purest iron, from sensor data taken every 20 secondsPython · Pandas · Deepnote - Analytics & dashboards
Massachusetts schools
1,861public schools comparedSchool performance across 1,861 public schools, and two common beliefs the data didn't supportTableau - Analytics & dashboards
NBA shooting, read by a former pro
15+years as a pro player and coach, now reading the game in dataA full NBA season in one Tableau dashboard, built by someone who played and coached the gameTableau
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