Add .NET SDK docs

apps/nextra/pages/en/build/guides/system-integrators-guide.mdx

@@ -101,8 +101,10 @@ Aptos currently provides four SDKs:
 1. [Typescript](../sdks/ts-sdk.mdx)
 2. [Python](../sdks/python-sdk.mdx)
 3. [Rust](../sdks/rust-sdk.mdx)
-4. [Unity](../sdks/unity-sdk.mdx)
+4. [.NET](../sdks/dotnet-sdk.mdx)
 5. [Go SDK](../sdks/go-sdk.mdx)
+6. [Unity](../sdks/unity-sdk.mdx)
+
 
 Almost all developers will benefit from exploring the CLI.
 [Using the CLI](../cli.mdx) demonstrates how the CLI can be used to create

apps/nextra/pages/en/build/sdks.mdx

@@ -34,6 +34,15 @@ Use these Aptos software development kits (SDKs), in combination with the [Aptos
       <Card.Title>Rust SDK</Card.Title>
       <Card.Description>Aptos Rust SDK</Card.Description>
     </div>
+  </Card>
+    <Card href="./sdks/dotnet-sdk" className="flex flex-row gap-4">
+    <Card.Image src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Microsoft_.NET_logo.svg/800px-Microsoft_.NET_logo.svg.png" />
+    <div className="flex flex-col gap-2">
+      <Card.Title>C#/.NET SDK</Card.Title>
+       <Card.Description>
+        Aptos .NET SDK
+      </Card.Description>
+    </div>
   </Card>
   <Card href="./sdks/unity-sdk" className="flex flex-row gap-4">
     <Card.Image src="https://cdn-icons-png.freepik.com/512/5969/5969346.png" />

apps/nextra/pages/en/build/sdks/_meta.tsx

@@ -8,6 +8,9 @@ export default {
   "rust-sdk": {
     title: "Rust SDK",
   },
+  "dotnet-sdk": {
+    title: ".NET SDK",
+  },
   "unity-sdk": {
     title: "Unity SDK",
   },

apps/nextra/pages/en/build/sdks/dotnet-sdk.mdx

@@ -0,0 +1,86 @@
+---
+title: ".NET SDK "
+---
+
+import { Card, Cards } from "@components/index";
+import { Callout } from "nextra/components";
+
+<Callout type="warning" emoji="❗">
+  This SDK is currently in beta. Please report any issues you encounter by
+  creating an issue in the
+  [aptos-labs/aptos-dotnet-sdk](https://github.com/aptos-labs/aptos-dotnet-sdk)
+  repository.
+</Callout>
+
+# Aptos .NET SDK (Beta)
+
+Integrate Aptos web3 capabilities within your .NET applications. The goal of this SDK is to provide a set of tools
+for developers to build multi-platform applications across compatible game engines and platforms.
+
+**Supported Features**
+
+- Binary Canonical Serialization (BCS) encoding and decoding
+- Ed25519, SingleKey, MultiKey, and Keyless signer support
+- Utilities for transaction building, signing, and submission
+- Abstractions over the Aptos Fullnode and Indexer APIs
+- Aptos Names (ANS) support for resolution and lookup
+
+## Installation
+
+The .NET SDK is available on [NuGet](https://www.nuget.org/packages/Aptos).
+
+You can install the .NET SDK using the following command:
+
+```bash
+dotnet add package Aptos
+```
+
+## Gaming Integrations
+
+Begin using the Aptos .NET SDK in your game engine of choice.
+
+<Cards className="xl:grid-cols-2">
+  <Card href="./dotnet-sdk/godot-integration" className="flex flex-row gap-4">
+    <Card.Image src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Godot_icon.svg/2048px-Godot_icon.svg.png" />
+    <div className="flex flex-col gap-2">
+      <Card.Title>Godot Integration</Card.Title>
+      <Card.Description>
+        Begin integrating into Godot projects.
+      </Card.Description>
+    </div>
+  </Card>
+  <Card href="./dotnet-sdk/unity-integration" className="flex flex-row gap-4">
+    <Card.Image src="https://cdn-icons-png.freepik.com/512/5969/5969346.png" />
+    <div className="flex flex-col gap-2">
+      <Card.Title>Unity Integration</Card.Title>
+      <Card.Description>
+        Begin integrating into Unity projects.
+      </Card.Description>
+    </div>
+  </Card>
+</Cards>
+
+### Compatibility
+
+| .NET Version      | Supported | Target Game Engines |
+| ----------------- | --------- | ------------------- |
+| .NET Standard 2.1 | ✅        | Unity               |
+| .NET 6.0          | ✅        | Godot               |
+| .NET 7.0          | ✅        | Godot (Android)     |
+| .NET 8.0          | ✅        | Godot (iOS)         |
+
+## Resources
+
+<Cards className="xl:grid-cols-2">
+  <Card
+    href="./dotnet-sdk/getting-started"
+    className="col-span-2 flex flex-row gap-4"
+  >
+    <div className="flex flex-col gap-2">
+      <Card.Title>Getting Started</Card.Title>
+      <Card.Description>
+        Begin developing using the Aptos .NET SDK.
+      </Card.Description>
+    </div>
+  </Card>
+</Cards>

apps/nextra/pages/en/build/sdks/dotnet-sdk/_meta.tsx

@@ -0,0 +1,17 @@
+export default {
+  "getting-started": {
+    title: "Getting Started",
+  },
+  "unity-integration": {
+    title: "Unity Integration",
+  },
+  "godot-integration": {
+    title: "Godot Integration",
+  },
+  accounts: {
+    title: "Accounts",
+  },
+  transactions: {
+    title: "Transactions",
+  },
+};

apps/nextra/pages/en/build/sdks/dotnet-sdk/accounts/_meta.tsx

@@ -0,0 +1,5 @@
+export default {
+  ed25519: {
+    title: "Ed25519 Accounts",
+  },
+};

apps/nextra/pages/en/build/sdks/dotnet-sdk/accounts/ed25519.mdx

@@ -0,0 +1,52 @@
+---
+title: "Ed25519 Accounts"
+---
+
+import { Steps, Callout } from "nextra/components";
+import { Card, Cards } from "@components/index";
+
+<Callout type="warning" emoji="❗">
+  This SDK is currently in beta. Please report any issues you encounter by
+  creating an issue in the
+  [aptos-labs/aptos-dotnet-sdk](https://github.com/aptos-labs/aptos-dotnet-sdk)
+  repository.
+</Callout>
+
+# Ed25519 Accounts
+
+The Aptos .NET SDK provides a simple way to create and manage Ed25519 accounts. In this guide we
+will provide snippets of creating or importing existing accounts.
+
+## Creating Ed25519Accounts
+
+Ed25519Accounts are created to sign transactions and interact with the blockchain.
+
+### Using a Private Key
+
+To generate an account from a private key, you will need to create the `Ed25519PrivateKey` object and pass into into the
+`Ed25519Account` constructor. The private key can be given a `string` or `byte[]` representation.
+
+```csharp
+var privateKey = new Ed25519PrivateKey("0x1234...abcdef");
+var account = new Ed25519Account(privateKey);
+```
+
+### Using a Mneomonic Phrase
+
+To generate an account from a phrase, you can use `Ed25519Account.FromDerivationPath` and pass in the phrase and the derivation path.
+The derivation path that is typically used throughout the Aptos ecosystem is `m/44'/637'/0'/0'/0'`.
+
+```csharp
+var account = Ed25519Account.FromDerivationPath(
+    "m/44'/637'/0'/0'/0'",
+    "apple banana cat dog elephant fox ..."
+);
+```
+
+### Generating a Random Account
+
+To create a random account, you can use the `Account.Generate()` method.
+
+```csharp
+var account = Account.Generate();
+```

apps/nextra/pages/en/build/sdks/dotnet-sdk/getting-started.mdx

@@ -0,0 +1,116 @@
+---
+title: "Quickstart"
+---
+
+import { Steps, Callout } from "nextra/components";
+import { Card, Cards } from "@components/index";
+
+<Callout type="warning" emoji="❗">
+  This SDK is currently in beta. Please report any issues you encounter by
+  creating an issue in the
+  [aptos-labs/aptos-dotnet-sdk](https://github.com/aptos-labs/aptos-dotnet-sdk)
+  repository.
+</Callout>
+
+# Getting Started
+
+If you have not already installed the Aptos .NET SDK, follow one of the guides below to get started.
+
+<Cards className="xl:grid-cols-2">
+  <Card href="./godot-integration" className="flex flex-row gap-4">
+    <Card.Image src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Godot_icon.svg/2048px-Godot_icon.svg.png" />
+    <div className="flex flex-col gap-2">
+      <Card.Title>Godot Integration</Card.Title>
+      <Card.Description>
+        Integrate the Aptos .NET SDK with a Godot project.
+      </Card.Description>
+    </div>
+  </Card>
+  <Card href="./unity-integration" className="flex flex-row gap-4">
+    <Card.Image src="https://cdn-icons-png.freepik.com/512/5969/5969346.png" />
+    <div className="flex flex-col gap-2">
+      <Card.Title>Unity SDK</Card.Title>
+      <Card.Description>
+        Integrate the Aptos .NET SDK with a Unity project.
+      </Card.Description>
+    </div>
+  </Card>
+</Cards>
+
+<Steps>
+
+### Set up your AptosClient
+
+Set up your Aptos client by adding the `Aptos` namespace and instantiating an `AptosClient`. You can use a predefined
+configuration from `Networks` or configuring your own.
+
+```csharp filename="Program.cs"  {1-1, 7-8}
+using Aptos;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        var config = new AptosConfig(Aptos.Networks.Mainnet);
+        var client = new AptosClient(config);
+    }
+}
+```
+
+### Query the Blockchain
+
+Now that you have the client setup, you can query the blockchain!
+
+```csharp filename="Program.cs" {10-11}
+using Aptos;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        var config = new AptosConfig(Aptos.Networks.Mainnet);
+        var client = new AptosClient(config);
+
+        var ledgerInfo = client.Block.GetLedgerInfo();
+        Console.WriteLine(ledgerInfo.BlockHeight);
+    }
+}
+```
+
+### Sign and Submit Transactions
+
+To interact with the blockchain, you will need to create a signer and build a transaction.
+
+```csharp filename="Program.cs" {10-11,13-21,23-24,26-27}
+using Aptos;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        var config = new AptosConfig(Aptos.Networks.Mainnet);
+        var client = new AptosClient(config);
+
+        // 1. Create a signer
+        var signer = Account.Generate();
+
+        // 2. Build the transaction
+        var transaction = await client.Transaction.Build(
+            sender: account,
+            data: new GenerateEntryFunctionPayloadData(
+                function: "0x1::aptos_account::transfer_coins",
+                typeArguments: ["0x1::aptos_coin::AptosCoin"],
+                functionArguments: [account.Address, "100000"]
+            )
+        );
+
+        // 3. Sign and submit the transaction
+        var pendingTransaction = client.Transaction.SignAndSubmitTransaction(account, transaction);
+
+        // 4. (Optional) Wait for the transaction to be committed
+        var committedTransaction = await client.Transaction.WaitForTransaction(pendingTransaction);
+    }
+}
+```
+
+</Steps>