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The desktop apps are the point-and-click path through the same engine the CLI uses. This walkthrough uses Post — the free front door — then points at the Pro features and the other three products.

Before you start

  • Install Pidgeon (or on macOS). Installing the launcher does not install the individual product apps; each is its own download.
  • Post’s free generation and validation loop needs no account. Everything else on this page (Pro features, Flock, Loft, Migrate) requires a Pidgeon account sign-in.
1

Generate a message

Open Post and the Generate panel (under Compose). Pick a message type (for example ADT^A01), set a count, and generate. The message appears in the output pane with syntax highlighting.
2

Validate it

Open the Validate panel (under Inspect). Paste your message or load the file, choose strict or compatibility mode, and read the field-level results with fix suggestions.
3

Run a conformance check

Open the Conformance panel (under Inspect) to probe a live FHIR endpoint against a published Implementation Guide — this is Conform, the module of Post covering US Core and Da Vinci PAS 2.1 today.
4

Explore the Pro features

Signing in with a Pro entitlement unlocks:
  • Workflow Wizard — build multi-step scenarios (admit → labs → discharge) visually
  • Diff — compare two messages or directories with field-level highlighting
  • AI Triage — plain-English explanations of validation failures (on-device or BYOK)
  • Reports — export HTML validation and conformance reports for stakeholders
  • Full reference datasets (LOINC, SNOMED CT, NDC, RxNorm, HCPCS)

Desktop apps and CLI share the same engine

Anything you do in a desktop app has a CLI equivalent, and CLI artifacts (reports, configs, profiles) are readable from the desktop apps:

Next steps