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

services/docs/content/en/apex/guides/_index.md

@@ -0,0 +1,24 @@
+---
+title: Guides
+description: Task-oriented guides for building node repositories, actions, and compositions.
+weight: 20
+---
+
+Task-oriented guides for day-to-day work with apex. Each guide solves one recurring problem: assembling a [node](/apex/glossary#node) repository, developing [actions](/apex/glossary#action) for the [engine](/apex/glossary#engine), defining service [compositions](/apex/glossary#compositions), and operating the underlying host.
+
+## Available guides {#available-guides}
+
+{{< cards >}}
+  {{< card link="/apex/guides/node-repository" title="Node repository" subtitle="Assemble the per-node repository that declares a node's identity, configs, and compositions." >}}
+  {{< card link="/apex/guides/action-development" title="Action development" subtitle="Write actions that the engine dispatches on a node." >}}
+  {{< card link="/apex/guides/service-composition" title="Service composition" subtitle="Define project compositions and deploy them alongside the core composition." >}}
+  {{< card link="/apex/guides/host-operations" title="Host operations" subtitle="Perform routine operations against a live host through the engine." >}}
+{{< /cards >}}
+
+---
+
+**See also:**
+
+- [Docs: Getting started](/apex/getting-started)
+- [Docs: Concepts](/apex/concepts)
+- [GitHub: apex.ermnvldmr.com](https://github.com/deytenit/apex.ermnvldmr.com)