I created a EDS project using boiler-plate project from github. I have configured AEM Code Sync as well. I am having a Gdrive location and I have added Sidekick plugin in my chrome browser. I can able to access *.aem.page and *.aem.live pages. I understand our code will be moved to code bus via AEM Code Sync app and content will be fetched using Sidekick by content bus. When a user requests a page, Helix admin takes the code from code bus and content from content bus and assets from media bus then dynamically renders the page and send it to CDN.
My doubts are,
1) where is this helix admin running? I have just created the project and configured AEM Code Sync and Sidekick. What these tools are doing actually. Are those pushing code and content to where? Where is Helix Admin actually running?
2) There is no CDNs like akamai, fastly or any other CDNs are configured. But I can access the *.aem.page and *.aem.live pages immediately after clicking on preview and publish buttons from Sidekick. How it is working actually for the newly created projects?