diff --git a/shell.nix b/shell.nix
index 83e9110..cd7b04e 100644
--- a/shell.nix
+++ b/shell.nix
@@ -10,7 +10,7 @@ let
 
 	runOpenOcd = writeShellScriptBin "run-openocd" ''
 		openocd \
-		-f board/st_nucleo_h743zi.cfg \
+		-f openocd/openocd.cfg \
 		-c init &
 		sleep 1
 	'';
@@ -49,12 +49,6 @@ let
 		&& flash-fpga-config
 	'';
 
-	verifyFPGAConfig = writeShellScriptBin "verify-fpga-config" ''
-		gdb -x gdb_config/fpga_verify.gdb
-		diff build/top.bin mem.bin
-		rm mem.bin
-	'';
-
 	resetFlash = writeShellScriptBin "reset-flash" ''
 		gdb -batch -x gdb_config/reset.gdb
 		echo "Reset is complete, please reset the openocd server."
@@ -64,6 +58,10 @@ let
 	    openocd -f openocd/openocd.cfg -f openocd/$1.cfg
 	'';
 
+	publishMqtt = writeShellScriptBin "publish-mqtt" ''
+		mosquitto_pub -h localhost -t $1 -m "$2" -d
+	'';
+
 in
 	stdenv.mkDerivation {
 		name = "nix-shell";		
@@ -85,8 +83,8 @@ in
 			compileMigenScript
 			flashFPGAConfig
 			configureFPGA
-			verifyFPGAConfig
 			resetFlash
 			openocdFlash
+			publishMqtt
 		];
 	}