diff --git a/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/DependencyManager.kt b/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/DependencyManager.kt
index 9492b1e..44fd4bc 100644
--- a/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/DependencyManager.kt
+++ b/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/DependencyManager.kt
@@ -34,9 +34,8 @@ class DependencyManager(private val project: Project) {
                 if (installationType == InstallationType.DEV) "-D" else null,
                 *dependencyNames.toTypedArray()
             ).toTypedArray()
-            val res = ShellRunner(project).execute(command)
             // check if the installation was successful
-            if (res == null) {
+            if (ShellRunner(project).execute(command) == null) {
                 NotificationManager(project).sendNotification(
                     "Failed to install dependencies",
                     "Failed to install dependencies: ${dependencyNames.joinToString { ", " }} (${command.joinToString(" ")}). Please install it manually.",
@@ -54,9 +53,8 @@ class DependencyManager(private val project: Project) {
                 "remove",
                 *dependencyNames.toTypedArray()
             ).toTypedArray()
-            val res = ShellRunner(project).execute(command)
             // check if the uninstallation was successful
-            if (res == null) {
+            if (ShellRunner(project).execute(command) == null) {
                 NotificationManager(project).sendNotification(
                     "Failed to uninstall dependencies",
                     "Failed to uninstall dependencies (${command.joinToString(" ")}). Please uninstall them manually.",
diff --git a/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/ShellRunner.kt b/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/ShellRunner.kt
index 03d61fa..4337538 100644
--- a/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/ShellRunner.kt
+++ b/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/helpers/ShellRunner.kt
@@ -9,16 +9,17 @@ class ShellRunner(private val project: Project? = null) {
         private val log = logger<ShellRunner>()
     }
 
-    private val failedCommands = mutableSetOf<String>()
+    private val failedWindowsPrograms = mutableSetOf<String>()
 
     private fun isWindows() = System.getProperty("os.name").lowercase().contains("win")
 
     fun execute(command: Array<String>): String? {
-        val commandName = command.firstOrNull() ?: return null.also {
+        val program = command.firstOrNull() ?: return null.also {
             log.warn("No command name provided")
         }
-        if (isWindows() && failedCommands.contains(commandName)) {
-            command[0] = "$commandName.cmd"
+        if (isWindows() && failedWindowsPrograms.contains(program)) {
+            command[0] = "$program.cmd"
+            log.warn("(Re)trying command with .cmd extension: \"${command.joinToString(" ")}\"")
         }
         return try {
             val platformCommand = if (isWindows()) {
@@ -28,21 +29,25 @@ class ShellRunner(private val project: Project? = null) {
             } + command
             log.debug("Executing command: \"${platformCommand.joinToString(" ")}\"")
             val process = ProcessBuilder(*platformCommand)
-                .redirectOutput(ProcessBuilder.Redirect.PIPE)
                 .directory(project?.basePath?.let { File(it) })
                 .start()
             process.waitFor()
-            process.inputStream.bufferedReader().readText().also {
-                log.debug("Successfully executed \"${platformCommand.joinToString(" ")}\": $it")
+            val output = process.inputStream?.bufferedReader()?.readText()?.also {
+                log.debug("Successfully executed \"${platformCommand.joinToString(" ")}\" with output:\n$it")
             }
+            val error = process.errorStream?.bufferedReader()?.readText()
+            if (output.isNullOrBlank() && !error.isNullOrBlank()) {
+                log.warn("Error while executing \"${platformCommand.joinToString(" ")}\":\n${error.take(150)}")
+            }
+            output
         } catch (e: Exception) {
-            if (isWindows() && !commandName.endsWith(".cmd")) {
+            if (isWindows() && !program.endsWith(".cmd")) {
                 log.warn(
-                    "Failed to execute \"${command.joinToString(" ")}\". Trying to execute \"$commandName.cmd\" instead",
+                    "Failed to execute \"${command.joinToString(" ")}\". Trying to execute \"$program.cmd\" instead",
                     e
                 )
-                failedCommands.add(commandName)
-                return execute(arrayOf("$commandName.cmd") + command.drop(1).toTypedArray())
+                failedWindowsPrograms.add(program)
+                return execute(arrayOf("$program.cmd") + command.drop(1).toTypedArray())
             }
             log.warn("Error while executing \"${command.joinToString(" ")}\"", e)
             null
diff --git a/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/sources/Source.kt b/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/sources/Source.kt
index 51640f7..53672ad 100644
--- a/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/sources/Source.kt
+++ b/src/main/kotlin/com/github/warningimhack3r/intellijshadcnplugin/backend/sources/Source.kt
@@ -152,7 +152,7 @@ abstract class Source<C : Config>(val project: Project, private val serializer:
     }
 
     // Public methods
-    open fun fetchAllComponents(): List<Component> {
+    fun fetchAllComponents(): List<Component> {
         return RequestSender.sendRequest("$domain/registry/index.json").ok {
             Json.decodeFromString<List<Component>>(it.body)
         }?.also {
@@ -162,7 +162,7 @@ abstract class Source<C : Config>(val project: Project, private val serializer:
         }
     }
 
-    open fun getInstalledComponents(): List<String> {
+    fun getInstalledComponents(): List<String> {
         return FileManager(project).getFileAtPath(
             "${resolveAlias(getLocalPathForComponents())}/ui"
         )?.children?.map { file ->
@@ -174,7 +174,7 @@ abstract class Source<C : Config>(val project: Project, private val serializer:
         }
     }
 
-    open fun addComponent(componentName: String) {
+    fun addComponent(componentName: String) {
         val componentsPath = resolveAlias(getLocalPathForComponents())
         // Install component
         val component = fetchComponent(componentName)
@@ -275,7 +275,7 @@ abstract class Source<C : Config>(val project: Project, private val serializer:
         }
     }
 
-    open fun isComponentUpToDate(componentName: String): Boolean {
+    fun isComponentUpToDate(componentName: String): Boolean {
         val remoteComponent = fetchComponent(componentName)
         val componentPath =
             "${resolveAlias(getLocalPathForComponents())}/${remoteComponent.type.substringAfterLast(":")}${