AUTOMATION YOU CAN actually TEST.

Self-hosted n8n and PostgreSQL system for synthetic quote follow-up. It proves deterministic scheduling, exact Gmail thread matching, guarded reply classification, reproducible reporting and bounded failure handling.

Someone in a legal team applies a Gmail label and the whole thread becomes a PDF in the matching Google Drive case folder, named Case Name - YYYY-MM-DD - Sender Domain. The message is marked so it is never documented twice, and every failure ends with a line in the log instead of half a file.

Self-hosted retrieval augmented chatbot over a company document set. Customers read the approved public documents, teammates read those plus the internal ones, and every released answer names the passage it came from. When the documents do not hold the answer it hands the question to a person instead of guessing.

Inbound form leads were qualified and entered into the CRM by hand. A model now judges each lead criterion by criterion under a strict schema, and code, not the model, decides whether it is Hot, Warm or Cold.

An after-hours line for HVAC and plumbing shops. The model listens and classifies; the workflow and the database decide what happens, so nothing is quoted, promised or paged unless a tool did it.

Self-hosted n8n workflow that classifies every incoming ticket, applies routing and business-hours rules from SQL, and writes each decision to PostgreSQL. It drafts a reply only from one cited source and stops for a human when a ticket is urgent, sensitive, uncertain or incomplete.