Using LibreOffice draw as base for graphical programming of Embedded Control solutions :: LibreOffice Conference 2024 :: pretalx
https://events.documentfoundation.org/libreoffice-conference-2024/talk/3ANLAR/
LibreOffice - The Document Foundation
Using LibreOffice draw as base for graphical programming of Embedded Control solutions - YouTube
https://www.youtube.com/watch?v=ntpdn5Ldkic
> The tool reads the content.xml and translates it into a suitable target language (usually C/++).
とのことなので↓これと似た方向性ですかねー
LibreOffice Drawを位置・図形データ編集用GUIフロントエンドとして使う - Qiita
https://qiita.com/sonota88/items/4c280ac13b7f7709abeb