Under Validation

Catch bad ZPL labels before they hit the thermal roll.

A planned local CUPS-side ZPL layout linter for small warehouses: overflow, overlap, and low-DPI barcode checks on the spool. Waitlist only; no production filter yet.

Concept validation only. No payment, no commitment, no recurring newsletter.

Local-first directionPortable outputsBuilt around a specific workflowEarly access is free

Proposed local workflow

Concept stage only. Signup measures whether anyone searches for this pain hard enough to join a waitlist.

01

ZPL geometry lint

Parse field coordinates and sizes; flag clipped text and overlapping elements before print.

02

Barcode sanity

Warn on barcodes that are too narrow or low-DPI for reliable scans.

03

Optional hold

If enabled later, critical findings could hold a CUPS job — always with an override path.

This is a product decision, not a finished product.

The concept is being validated before development time is committed. Joining tells us the problem is relevant to you and gives you first access if the evidence supports a build.

  • You will not be charged.
  • Your email is only used for this experiment.
  • You can leave the list at any time.

Questions, answered clearly.

The current scope, privacy model, and next step without launch-day promises.

Does this work on Windows today?

v1 concept is CUPS/Linux-macOS only. Windows spool support is explicitly out of scope until demand is proven.

Is a CUPS filter installable now?

No. This page is waitlist-only concept validation.

Does this guarantee the intended outcome?

No. The concept should state its limits clearly and preserve human review wherever judgment is required.

What happens when I request access?

Your email is recorded for this experiment only. You receive one relevant update or beta invitation if the concept moves forward.

Early access

Need offline ZPL checks on a CUPS station?

Join the waitlist. One update if a local beta opens.