Never Leaves: offline AI that drafts the quote while you are still under the house

Description and use

The tool enables tradespeople to draft quotes and site reports on site without network access, using a local AI model and ensuring no internet traffic.

Problem

Tradespeople need to draft quotes and site reports on site without network access, but cloud tools require internet and data upload.

Outcome

The tool enables offline drafting of quotes and reports, guarantees no network traffic, and flags any figures not present in the original notes, improving workflow for field workers.

Workflow

• 1. Worker writes a messy note on the laptop while on site.
• 2. Tool re-executes itself in a user and network namespace with no network interfaces.
• 3. Tool verifies isolation by checking /proc/net files.
• 4. Tool loads a local Gemma 3 4B GGUF model via llama-cpp-python.
• 5. Model drafts a quote and site report from the note.
• 6. Tool checks that all figures in the draft appear in the original note and flags missing ones.
• 7. Output includes placeholders for missing data and a ledger record of the run.

Evidence

Never Leaves drafts real work documents on your own laptop, from your own rough notes, using a local open-weight model, with the network switched off at the kernel.

Source

The tool shows you The first thing a drafting run prints is a proof of its own isolation.

Source

Gemma 3 4B, 2.5 GB as a single Q4_K_M file, loaded in-process through llama-cpp-python.

Source

The check exists because a small local model can state a number it made up.

Source

The recording is unedited output from a single real run.

Source