nlohmann/json (inst/include/nlohmann/json.hpp)
Copyright holders credited in the vendored header include Björn Hoehrmann,
Florian Loitsch, Niels Lohmann, Evan Nemerson, and The Abseil Authors.
License: MIT (see the header's SPDX notices)
https://github.com/nlohmann/json

webview (src/webview/webview.h)
Copyright (c) 2017 Serge Zaitsev; contributor Steffen André Langnes (2022)
License: MIT
https://github.com/webview/webview

WebView2 SDK (src/webview2_sdk/)
Copyright (c) Microsoft Corporation
License: BSD-style (see src/webview2_sdk/LICENSE)
https://developer.microsoft.com/microsoft-edge/webview2/
