diff --git a/README.md b/README.md
index 2178081..2bb3e08 100644
--- a/README.md
+++ b/README.md
@@ -37,9 +37,10 @@ Lemma can be configured using environment variables. Here are the available conf
 - `LEMMA_WORKDIR`: Working directory for application data (default: "./data")
 - `LEMMA_STATIC_PATH`: Path to static files (default: "../app/dist")
 - `LEMMA_PORT`: Port to run the server on (default: "8080")
-- `LEMMA_APP_URL`: Full URL where the application is hosted
+- `LEMMA_DOMAIN`: Domain name where the application is hosted for cookie authentication
 - `LEMMA_CORS_ORIGINS`: Comma-separated list of allowed CORS origins
-- `LEMMA_JWT_SIGNING_KEY`: Key used for signing JWT tokens (autogenerated if not set)
+- `LEMMA_JWT_SIGNING_KEY`: Key used for signing JWT tokens
+- `LEMMA_LOG_LEVEL`: Logging level (defaults to DEBUG in development mode, INFO in production)
 - `LEMMA_RATE_LIMIT_REQUESTS`: Number of allowed requests per window (default: 100)
 - `LEMMA_RATE_LIMIT_WINDOW`: Duration of the rate limit window (default: 15m)
 
diff --git a/server/internal/app/config.go b/server/internal/app/config.go
index 52ed8d3..3e0f49c 100644
--- a/server/internal/app/config.go
+++ b/server/internal/app/config.go
@@ -16,7 +16,6 @@ type Config struct {
 	WorkDir           string
 	StaticPath        string
 	Port              string
-	RootURL           string
 	Domain            string
 	CORSOrigins       []string
 	AdminEmail        string
@@ -90,10 +89,6 @@ func LoadConfig() (*Config, error) {
 		config.Port = port
 	}
 
-	if rootURL := os.Getenv("LEMMA_ROOT_URL"); rootURL != "" {
-		config.RootURL = rootURL
-	}
-
 	if domain := os.Getenv("LEMMA_DOMAIN"); domain != "" {
 		config.Domain = domain
 	}
diff --git a/server/internal/app/config_test.go b/server/internal/app/config_test.go
index ee9045c..c15ca9b 100644
--- a/server/internal/app/config_test.go
+++ b/server/internal/app/config_test.go
@@ -51,7 +51,6 @@ func TestLoad(t *testing.T) {
 			"LEMMA_WORKDIR",
 			"LEMMA_STATIC_PATH",
 			"LEMMA_PORT",
-			"LEMMA_ROOT_URL",
 			"LEMMA_DOMAIN",
 			"LEMMA_CORS_ORIGINS",
 			"LEMMA_ADMIN_EMAIL",
@@ -127,7 +126,6 @@ func TestLoad(t *testing.T) {
 			{"WorkDir", cfg.WorkDir, "/custom/work/dir"},
 			{"StaticPath", cfg.StaticPath, "/custom/static/path"},
 			{"Port", cfg.Port, "3000"},
-			{"AppURL", cfg.RootURL, "http://localhost:3000"},
 			{"AdminEmail", cfg.AdminEmail, "admin@example.com"},
 			{"AdminPassword", cfg.AdminPassword, "password123"},
 			{"JWTSigningKey", cfg.JWTSigningKey, "secret-key"},