picotool build

os setup

sudo pacman -S cmake arm-none-eabi-gcc arm-none-eabi-newlib

setup picosdk

git clone https://github.com/raspberrypi/pico-sdk.git
cd pico-sdk
git submodule update --init
export PICO_SDK_PATH=$PWD

build picotool

git clone https://github.com/raspberrypi/picotool.git
cd picotool
mkdir build
cd build
cmake ..
make

if you get cmake error minimum etc…, use cmake .. -DCMAKE_POLICY_VERSION_MINIMUM=3.5 instead