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

Yes sling model responses can be cached kn dispatcher if you you implement sling model exporter in your sling model class. Actually, you can only cache the response on dispatcher which have file extension at the end of the response url. Check below to see how you can implement sling model exporter i...

You can also use acs-commons dispatcher flush to clear the cache. It has 2 options invalidate and delete the cache. https://adobe-consulting-services.github.io/acs-aem-commons/features/dispatcher-flush-ui/index.html

Package installation is more efficient way of installing the service pack either manually or via Curl command but not the only option to install service pack in aem. You can create an install folder inside crx-QuickStart and put the service pack zip package there and aem will automatically install t...

You must be extending the dialog as well so in that case you can use extraClientlibs=“your.custom.clientlibs” Learn more on https://sourcedcode.com/blog/aem/what-are-aem-extraclientlibs

Please check if it helps you https://blogs.perficient.com/2018/10/18/a-way-to-handle-dates-in-aem/

You need to explicitly create the folders on which you are setting the ACLs  Add repoinit statements to the script property of the config. The syntax and options are documented in Sling documentation. There should be explicit creation of a parent folder before their child folders. For example, an ex...

1) Can you check which package/dependency is adding the reported on org.apache.xml.security http://localhost:4502/system/console/depfinder 2) have you updated the aem Uber jar to 6.5.17

Surely aem query will help. If you know which all components are having the href value and it only part of some specific node property then you can go with normal page property query and if you are not sure if its part of one component or several components and used extensively with many node proper...

In the cache section of your dispatcher farm configuration you can add another rule to deny caching for the error/404.html   /glob “/content/site/error/404.html” /type “deny”