Project-authored R code, bridge code, documentation, tests, and metadata
  Copyright 2026 Yifei Zheng.
  Licensed under the Apache License, Version 2.0.
  Full license text: LICENSES/Apache-2.0.txt.

Bundled Liljegren WBGT derivative: src/wbgt.c
  Copyright 2008 UChicago Argonne, LLC. All Rights Reserved.
  This derivative is governed by the original UChicago Argonne Liljegren
  WBGT v1.1 terms.
  Original author: James C. Liljegren.
  Solar-position code author: Nels Larson.
  Derivative modifications are attributed to Yifei Zheng in the
  blanket derivative-work notice in src/wbgt.c.
  Full license text:
  LICENSES/LicenseRef-UChicago-Argonne-WBGT-1.1.txt.

See LICENSES/ and NOTICE in the installed package.