Faut-il tout surcharger dans le même fichier HTML avec un template Handlebars ?

[merefield (Robert)]

Take note:

(not recomended) Overriding Discourse templates from a Theme or Plugin

Ideally, when customizing Discourse via themes/plugins, you should use CSS, the JavaScript Plugin API, or plugin outlets. If none of these work for your use-case, feel free to open a PR to Discourse core or start a dev topic here on Meta. We’re always happy to discuss adding new outlets/APIs to make customization easier. If you’ve exhausted all other options, you may need to resort to template overrides. This technique allows you to override the entire template of any Ember Component or Route f…