Implement Keystone environment deployments

app/Models/SourceProvider.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use App\Enums\SourceProviderType;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class SourceProvider extends Model
+{
+    protected $guarded = [];
+
+    protected function casts(): array
+    {
+        return [
+            'type' => SourceProviderType::class,
+            'config' => 'array',
+        ];
+    }
+
+    public function organisation(): BelongsTo
+    {
+        return $this->belongsTo(Organisation::class);
+    }
+}