I believe this is the current iteration: https://github.com/WICG/webcomponents/blob/gh-pages/proposals/DOM-Parts.md https://github.com/WICG/webcomponents/blob/

I believe this is the current iteration: https://github.com/WICG/webcomponents/blob/gh-pages/proposals/DOM-Parts.md https://github.com/WICG/webcomponents/blob/gh-pages/proposal... You can learn more of the history here: https://www.w3.org/2020/10/TPAC/parts_and_template_instantiation.html https://www.w3.org/2020/10/TPAC/parts_and_template_instantia... https://github.com/WICG/webcomponents/blob/gh-pages/proposals/Template-Instantiation.md https://github.com/WICG/webcomponents/blob/gh-pages/proposal...