Money Manager Ex is a free, open-source, cross-platform, easy-to-use personal finance software. It primarily helps organize one's finances and keeps track of where, when and how the money goes.
webviewko provides a Kotlin/JVM and a Kotlin/Native(experimental) binding to webview, a tiny cross-platform webview library to build modern cross-platform GUIs using WebView2, WebKit and WebKitGTK.