fix, feat, doc: massive build system refactorion, bug fixes and apex documentation (#19)

services/docs/content/en/_index.md

@@ -7,6 +7,7 @@ title: "Ermnvldmr's Documentation"
 Welcome to the unified documentation for my own projects
 
 {{< cards >}}
-{{< card link="root" title="ermnvldmr.com-root-commons" icon="server" subtitle="Documentation for the root deployment commons framework" >}}
+{{< card link="apex" title="apex.ermnvldmr.com" icon="server" subtitle="Fleet operations framework: a stdlib-python engine and a shared compose core" >}}
 {{< card link="quetza" title="Quetza Bot" icon="terminal" subtitle="Modular Discord bot framework documentation" >}}
+{{< card link="root" title="ermnvldmr.com-root-commons (deprecated)" icon="archive" subtitle="Deprecated — superseded by the apex framework" >}}
 {{< /cards >}}