Pi Pico in CLion Struggles

Hello fellow tinkerers! I've been trying to set up CLion to work with building ELF2 an UF2 files, but I've been having a bit of struggles. I'm trying to use the [Raspberry Pi Pico SDK]( https://github.com/raspberrypi/pico-sdk/tree/master ). My host machine is Windows 10 and I'm using the [GNU Arm Embedded Toolchain]( https://developer.arm.com/downloads/-/gnu-rm ) as shown in the image.

cmake
cmake_minimum_required(VERSION 3.26)

# Check if SDK exists, it not then fetch it from remote git
set(PICO_SDK_FETCH_FROM_GIT ON)

# Pull in Pico SDK
include(pico_sdk_import.cmake)

project(TestProject)

# Initialise Pico SDK
pico_sdk_init()

# Main source files
add_executable(TestProject
    src/main.c
)

# Add pico_stdlib library which aggregates commonly used features
target_link_libraries(TestProject pico_stdlib)

# Create map/bin/hex/uf2 file in addition to ELF.
pico_add_extra_outputs(TestProject)

My CMakeLists reloads perfectly fine and the Pico SDK is fetched into the build cmake-build-pico build directory. I've used the blink example to test if this setup works:

c
/
  Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
 
  SPDX-License-Identifier: BSD-3-Clause
 /

#include "pico/stdlib.h"

int main() {
#ifndef PICO_DEFAULT_LED_PIN
#warning blink example requires a board with a regular LED
#else
    const uint LED_PIN = PICO_DEFAULT_LED_PIN;
    gpio_init(LED_PIN);
    gpio_set_dir(LED_PIN, GPIO_OUT);
    while (true) {
        gpio_put(LED_PIN, 1);
        sleep_ms(250);
        gpio_put(LED_PIN, 0);
        sleep_ms(250);
    }
#endif
}

When hovering over the import I get a syntax error "'pico/stdlib.h' file not found". When attempting to build I get the following:

====================[ Build | TestProject | Pico ]================================
C:\Users\Marcel\AppData\Local\JetBrains\Toolbox\apps\CLion\ch-0\232.9921.42\bin\cmake\win\x64\bin\cmake.exe --build C:\Users\Marcel\CLionProjects\TestProject\cmake-build-pico --target TestProject -j 10
[1/51] Performing configure step for 'ELF2UF2Build'
FAILED: elf2uf2/src/ELF2UF2Build-stamp/ELF2UF2Build-configure C:/Users/Marcel/CLionProjects/TestProject/cmake-build-pico/elf2uf2/src/ELF2UF2Build-stamp/ELF2UF2Build-configure 
cmd.exe /C "cd /D C:\Users\Marcel\CLionProjects\TestProject\cmake-build-pico\elf2uf2 && C:\Users\Marcel\AppData\Local\JetBrains\Toolbox\apps\CLion\ch-0\232.9921.42\bin\cmake\win\x64\bin\cmake.exe -DCMAKE_MAKE_PROGRAM:FILEPATH=C:/Users/Marcel/AppData/Local/JetBrains/Toolbox/apps/CLion/ch-0/232.9921.42/bin/ninja/win/x64/ninja.exe -GNinja -S C:/Users/Marcel/CLionProjects/TestProject/cmake-build-pico/_deps/pico_sdk-src/tools/elf2uf2 -B C:/Users/Marcel/CLionProjects/TestProject/cmake-build-pico/elf2uf2 && C:\Users\Marcel\AppData\Local\JetBrains\Toolbox\apps\CLion\ch-0\232.9921.42\bin\cmake\win\x64\bin\cmake.exe -E touch C:/Users/Marcel/CLionProjects/TestProject/cmake-build-pico/elf2uf2/src/ELF2UF2Build-stamp/ELF2UF2Build-configure"
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:2 (project):
  No CMAKE_C_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.


CMake Error at CMakeLists.txt:2 (project):
  No CMAKE_CXX_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.


-- Configuring incomplete, errors occurred!
ninja: build stopped: subcommand failed.

Tracing back to the files it seems to attempt to use, things like .../cmake-build-pico/elf2uf2/src/ELF2UF2Build-stamp/ELF2UF2Build-configure cmd.exe which aren't present as shown in the 2nd image. What am I doing wrong? Any resources I can use?