diff --git a/.cargo/config.toml b/.cargo/config.toml
index 01c7fca..0b32db2 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,6 +1,5 @@
 [target.'cfg(all(target_arch = "arm", target_os = "none"))']
-runner = "probe-rs run --chip RP2040 --protocol swd"
-# runner = "elf2uf2-rs -d"
+runner = "picotool load -u -v -x -t elf"
 
 rustflags = [
   "-C", "linker=flip-link",
diff --git a/shell.nix b/shell.nix
index d866bbc..882a501 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,10 +1,9 @@
 { pkgs ? import <nixpkgs> {} }:
 pkgs.mkShell {
   nativeBuildInputs = with pkgs; [
-    elf2uf2-rs
+    picotool
     gcc
     gnumake
-    probe-rs
     rustup
   ];
 }