diff --git a/io.go b/io.go
index 51bbc8f..0bb32e3 100644
--- a/io.go
+++ b/io.go
@@ -31,6 +31,10 @@ func parseRegistriesFromDir(dir string) []Registry {
 
 			}
 
+			// Skip registries without auth strategy, as they are considered public
+			if registry.AuthStrategy == "" {
+				return nil
+			}
 			if mapRegistriesByHost[registry.RegistryHost] {
 
 				panic(fmt.Sprintf("Duplicated registry %s", registry.RegistryHost))
diff --git a/types.go b/types.go
index f620cba..9f6061f 100644
--- a/types.go
+++ b/types.go
@@ -1,10 +1,88 @@
 package main
 
+import "encoding/json"
+
 type Registry struct {
 	Name         string            `yaml:"name" json:"name"`
-	RegistryHost string            `yaml:"registry" json:"registry"`
-	AuthStrategy string            `yaml:"auth_strategy" json:"auth_strategy"`
+	RegistryHost          string            `yaml:"url,omitempty" json:"registry,omitempty"`
+	AuthStrategy string            `yaml:"auth_strategy" json:"auth_strategy,omitempty"`
 	Default      bool              `yaml:"default" json:"default"`
 	ImageTypes   []string          `yaml:"image_types" json:"image_types"`
 	BasePaths    map[string]string `yaml:"base_paths" json:"base_paths"`
 }
+
+// Custom YAML unmarshaling to support both 'registry' and 'url' mapping to RegistryHost
+func (r *Registry) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var aux map[string]interface{}
+	if err := unmarshal(&aux); err != nil {
+		return err
+	}
+	if name, ok := aux["name"].(string); ok {
+		r.Name = name
+	}
+	if reg, ok := aux["registry"].(string); ok {
+		r.RegistryHost = reg
+	} else if url, ok := aux["url"].(string); ok {
+		r.RegistryHost = url
+	}
+	if auth, ok := aux["auth_strategy"].(string); ok {
+		r.AuthStrategy = auth
+	}
+	if def, ok := aux["default"].(bool); ok {
+		r.Default = def
+	}
+	if img, ok := aux["image_types"].([]interface{}); ok {
+		r.ImageTypes = make([]string, len(img))
+		for i, v := range img {
+			if s, ok := v.(string); ok {
+				r.ImageTypes[i] = s
+			}
+		}
+	}
+	if bp, ok := aux["base_paths"].(map[string]interface{}); ok {
+		r.BasePaths = make(map[string]string)
+		for k, v := range bp {
+			if s, ok := v.(string); ok {
+				r.BasePaths[k] = s
+			}
+		}
+	}
+	return nil
+}
+
+// Custom JSON unmarshaling to support both 'registry' and 'url' mapping to Url
+func (r *Registry) UnmarshalJSON(data []byte) error {
+	var aux map[string]interface{}
+	if err := json.Unmarshal(data, &aux); err != nil {
+		return err
+	}
+	if name, ok := aux["name"].(string); ok {
+		r.Name = name
+	}
+	if reg, ok := aux["registry"].(string); ok {
+		r.RegistryHost = reg
+	}
+	if auth, ok := aux["auth_strategy"].(string); ok {
+		r.AuthStrategy = auth
+	}
+	if def, ok := aux["default"].(bool); ok {
+		r.Default = def
+	}
+	if img, ok := aux["image_types"].([]interface{}); ok {
+		r.ImageTypes = make([]string, len(img))
+		for i, v := range img {
+			if s, ok := v.(string); ok {
+				r.ImageTypes[i] = s
+			}
+		}
+	}
+	if bp, ok := aux["base_paths"].(map[string]interface{}); ok {
+		r.BasePaths = make(map[string]string)
+		for k, v := range bp {
+			if s, ok := v.(string); ok {
+				r.BasePaths[k] = s
+			}
+		}
+	}
+	return nil
+}
diff --git a/validations.go b/validations.go
index 11fe5ba..1dd501c 100644
--- a/validations.go
+++ b/validations.go
@@ -14,17 +14,17 @@ const SCHEMA = `{
 	"properties": {
 	  "name": { "type": "string" },
 	  "registry": { "type": "string" },
+	  "url": { "type": "string" },
 	  "image_types": {
-		"type": "array",
+		"type": ["array", "null"],
 		"items": { "type": "string", "enum": ["snapshots", "releases"] }
 	  },
-	  "default": { "type": "boolean" },
 	  "auth_strategy": {
 		"type": "string",
 		"enum": ["aws_oidc", "azure_oidc", "generic", "ghcr", "dockerhub"]
 	  },
 	  "base_paths": {
-		"type": "object",
+		"type": ["object", "null"],
 		"properties": {
 		  "services": { "type": "string" },
 		  "charts": { "type": "string" }
@@ -32,7 +32,7 @@ const SCHEMA = `{
 		"required": ["services", "charts"]
 	  }
 	},
-	"required": ["name", "registry", "image_types", "default", "auth_strategy", "base_paths"]
+	"required": ["name", "registry"]
   }`
 
 func validate() {