Improve Build Docs and Agile Coretime - Coreify The Build Section

docs/build/build-guides-coretime-start.md

@@ -0,0 +1,70 @@
+---
+id: build-guides-coretime-start
+title: Getting Started - Intro to the Polkadot SDK
+sidebar_label: Intro to the Polkadot SDK
+description: Introduction to the Polkadot SDK
+keywords: [coretime, blockspace, parathread, parachain, cores]
+slug: ../build-guides-coretime-start
+---
+
+:::warning This section is under construction and moving! (Expect Chaos)
+
+:::
+
+:::warning Only for Kusama and testnets!
+
+Agile coretime is only for the Kusama and testnet networks at the moment, and is not yet deployed on
+Polkadot.
+
+:::
+
+## Using the Polkadot SDK
+
+At first glance, the Polkadot SDK can be rather overwhelming, and in a way it is - it packs a lot of
+tech into one place. The Polkadot SDK used to be overarching **three** repositories:
+
+- [**Polkadot**](https://paritytech.github.io/polkadot-sdk/master/polkadot_sdk_docs/polkadot_sdk/index.html#polkadot) -
+  Which for a time, included both the client implementation and runtime, until the runtime was moved
+  to the Polkadot Fellows organization.
+- [**Substrate**](https://paritytech.github.io/polkadot-sdk/master/polkadot_sdk_docs/polkadot_sdk/index.html#substrate) -
+  The underlying, core primitives and libraries for building blockchains (any blockchain, not just
+  one for Polkadot). Much of Polkadot is built with Substrate!
+- [**Cumulus**](https://paritytech.github.io/polkadot-sdk/master/polkadot_sdk_docs/polkadot_sdk/index.html#cumulus) -
+  A set of libraries and tools which pertain specifically with connecting blockchains to Polkadot,
+  known as parachains.
+
+> For an in-depth dive into the monorepo, it is highly recommended that you look into the
+> [Polkadot SDK Docs, which explains everything.](https://paritytech.github.io/polkadot-sdk/master/polkadot_sdk_docs/polkadot_sdk/index.html)
+
+:::info What is a task?
+
+You might see the term "task" referenced quite a bit, but in most cases, it refers to a process
+utilizing Polkadot's compute. This could be a parachain or any other computational process, provided
+that it adheres to the Polkadot protocol.
+
+The full definition can be found [here](../learn/learn-agile-coretime.md#task).
+
+:::
+
+## Deploying on a Core
+
+Once you have your runtime and pallets developed, you will be able to deploy it on a
+[core](../learn/learn-agile-coretime.md#core), which is how one utilizes the shared security of the
+{{ polkadot: Polkadot :polkadot }}{{ kusama: Kusama :kusama }} network. One does so by:
+
+1. **Reserving** a [`ParaId`](../general/glossary.md#paraid), where you will upload your runtime and
+   genesis state.
+2. **Compiling** the runtime (written in Rust) to a [WebAssembly](../learn/learn-wasm.md) blob,
+   thereby defining how your state transitions from one state to the next. This runtime is created
+   using the Polkadot SDK.
+3. **Ensure** your chain spec is viable and ready to be deployed as a live, working parachain.
+4. **Generating** your genesis state and wasm.
+5. **Obtaining** a core, most likely through a
+   [Coretime marketplace](../learn/learn-guides-coretime-marketplaces.md).
+6. **Assigning** that core to your[ `ParaId`](../general/glossary.md#paraid).
+7. **Ensuring** you have at least one honest, synced collator for your task
+
+### Deploy adder collator
+
+Try out the above by deploying the
+[adder collator, a very simple "counter" parachain implementation.](../learn/learn-guides-coretime-parachains.md).