CSE is right, as part of the deployment, its always good have config present in deployment package rather making changes in Felix console which eventually gets stored in /apps/system/config.I would recommend using Ensure Service User from ACS Commons, it takes care of service user deployment with co...

As long as you keep tags only in cq:tags that should be fine but you do need tags in publish if you want them to get resolved.Which basically means, from cq:tags will have path to the tag node in /etc but when you need to resolve it to title, tags in /etc should be there.Also AFAIK, anonymous user d...

Was the instance stopped properly?Try to delete \crx-quickstart\repository\index folder and restart author.Thanks

As long as you know the relative/absolute path in JCR  where that property gets stored, you can read it.Thanks

1000 component in the same level is huge, Are these authored by the user or some kind of process generates it?Do you see a way of probably splitting them into multiple pages ?Thanks

In that case, you would need to setup clientlib.You can also “proxy” your clientlibs. This means that you place your clientlibs in /apps, but will be served via /etc. To enable this you need to add the property allowProxy to your clientlib.https://docs.adobe.com/docs/en/aem/6-3/develop/the-basics/cl...

Use below codeConfiguration conf = configAdmin.getConfiguration("org.apache.sling.engine.impl.auth.SlingAuthenticator"); String[] props = (String[]) conf.getProperties().get("sling.auth.requirements"); for (String value : props) { logger.info("Value {}", value); }Thanks

Yes, You can use CreateAsset API to do sohttps://docs.adobe.com/docs/en/aem/6-/develop/ref/javadoc/com/adobe/granite/asset/api/AssetManager.html#createAsset(java.lang.String)  Thanks

There are many out there but these should help you to get startedStorage Elements in AEM 6.3Data Store Configurations AEM with MongoDBConfiguring node stores and data stores in AEM 6

Look at the Content Manager Maven Plugin for AEM Managing Packages Using Maven https://docs.adobe.com/docs/en/aem/6-3/develop/dev-tools/vlt-mavenplugin.html  Thanks