diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
deleted file mode 100644
index 04a7528..0000000
--- a/.devcontainer/devcontainer.json
+++ /dev/null
@@ -1,42 +0,0 @@
-// For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/devcontainers/templates/tree/main/src/docker-existing-dockerfile
-{
-	"name": "Archlinux Dockerfile",
-	"build": {
-		// Sets the run context to one level up instead of the .devcontainer folder.
-		"context": "..",
-		// Update the 'dockerFile' property if you aren't using the standard 'Dockerfile' filename.
-		"dockerfile": "../Dockerfile"
-	},
-	"customizations": {
-		"vscode": {
-			"settings": {
-				"terminal.integrated.scrollback": 10000,
-				"git.allowForcePush": true,
-				"editor.minimap.enabled": false
-			}/*,
-			// Here are a few extensions suggestions for more serious development in this Codespace
-			"extensions": [
-				"eamodio.gitlens",
-				"ms-vscode.makefile-tools",
-				"ms-vscode.cpptools",
-				"ms-vscode.cpptools-themes"
-			]*/
-		}
-	}
-
-	// Features to add to the dev container. More info: https://containers.dev/features.
-	// "features": {},
-
-	// Use 'forwardPorts' to make a list of ports inside the container available locally.
-	// "forwardPorts": [],
-
-	// Uncomment the next line to run commands after the container is created.
-	// "postCreateCommand": "cat /etc/os-release",
-
-	// Configure tool-specific properties.
-	// "customizations": {},
-
-	// Uncomment to connect as an existing user other than the container default. More info: https://aka.ms/dev-containers-non-root.
-	// "remoteUser": "devcontainer"
-}
diff --git a/app/fm.c b/app/fm.c
index 9f667a8..eba2a4b 100644
--- a/app/fm.c
+++ b/app/fm.c
@@ -576,7 +576,7 @@ static void FM_Key_UP_DOWN(bool key_pressed, bool key_held, int8_t Step)
 	}
 
 	if (g_eeprom.fm_is_channel_mode)
-	{
+	{	// we're in channel mode
 		const uint8_t Channel = FM_FindNextChannel(g_eeprom.fm_selected_channel + Step, Step);
 		if (Channel == 0xFF || g_eeprom.fm_selected_channel == Channel)
 			goto Bail;
@@ -585,7 +585,7 @@ static void FM_Key_UP_DOWN(bool key_pressed, bool key_held, int8_t Step)
 		g_eeprom.fm_frequency_playing = g_fm_channels[Channel];
 	}
 	else
-	{
+	{	// no, frequency mode
 		uint16_t Frequency = g_eeprom.fm_selected_frequency + Step;
 		if (Frequency < g_eeprom.fm_lower_limit)
 			Frequency = g_eeprom.fm_upper_limit;
diff --git a/firmware.bin b/firmware.bin
new file mode 100644
index 0000000..47c5549
Binary files /dev/null and b/firmware.bin differ
diff --git a/firmware.packed.bin b/firmware.packed.bin
new file mode 100644
index 0000000..58889ea
Binary files /dev/null and b/firmware.packed.bin differ