It seems you need to configure custom mime type in Apache Sling MIME Type Service as explained on https://taradevko.com/aem/sling-model-exporter-now-really-custom/

Please go through this one. You can follow the tutorial to find the last stable repository state and revert your instance to that state https://experienceleague.adobe.com/en/docs/experience-cloud-kcs/kbarticles/ka-16542#:~:text=x,-Last%20update%3A%20November&text=If%20you%20have%20inconsistencies%20...

I believe it’s part of sidekick configs. Please take a look for the available api https://github.com/adobe/helix-sidekick-extension/blob/main/docs/API.md#SidekickConfig

I would suggest you to consume the API data from the frontend side so that app is not cached and it will get fresh data on each request. That’s how normally we do. I believe file data are cached on dispatcher so you need to identify the pages on which the component is authored and you can setup a co...

I would still insist that after taking a backup you can still for repository consistency check and she how old it shows you the consistent data and if it’s good to go or you really want to migrate the data to new instance. to setup an new instance of prod you need to identify all the changes that wa...

The quickstart jar and Dispatcher Tools can be downloaded as a zip file from the Software Distribution portal. Access to the SDK listings is limited to people who have environments on AEM Managed Services or AEM as a Cloud Service. https://experienceleague.adobe.com/en/docs/experience-manager-cloud-...

Hope this will help you to understand the order of precedence for OSGI configs  https://aemcases.blogspot.com/2018/05/osgi-service-configuration-and-its.html?m=1

You can explore graphQL in aem 6.5.10 onwards. It should be same on aem cloud as well. https://www.eggs.de/en/blog/graphql-the-future-for-aem-headless.html

Why don’t you use a curl command for this? https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/curl-command-aem-package-filter-addition-creation-aem-community/m-p/441066

Why can’t you put that value in page property instead of component dialog?