NRF52 zephyr - building for wrong board?

There are 3 json files within the project root directory, under C:\Users\me\Documents\PlatformIO\Projects\nixie_watch.vscode

within the .vscode folder, the 3 json files are:
c_cpp_properties.json
extensions.json
launch.json

They contain the following:

c_cpp_properties.json: 
{
    "configurations": [
        {
            "name": "!!! WARNING !!! AUTO-GENERATED FILE, PLEASE DO NOT MODIFY IT AND USE https://docs.platformio.org/page/projectconf/section_env_build.html#build-flags"
        },
        {
            "name": "Win32",
            "includePath": [
                "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/include",
                "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/src",
                "C:/Users/me/.platformio/packages/framework-zephyr/include",
                "C:/Users/me/Documents/PlatformIO/Projects/nixie_watch/.pio/build/nixie_watch/zephyr/include/generated",
                "C:/Users/me/.platformio/packages/framework-zephyr/soc/arm/nordic_nrf/nrf52",
                "C:/Users/me/.platformio/packages/framework-zephyr-segger/rtt",
                "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic/nrfx",
                "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic/nrfx/drivers/include",
                "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic/nrfx/mdk",
                "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic",
                "C:/Users/me/.platformio/packages/framework-zephyr-cmsis/CMSIS/Core/Include",
                "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/.pio/build/nixie_watch/zephyr/include/generated",
                "C:/Users/me/.platformio/packages/tool-unity",
                ""
            ],
            "browse": {
                "limitSymbolsToIncludedHeaders": true,
                "path": [
                    "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/include",
                    "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/src",
                    "C:/Users/me/.platformio/packages/framework-zephyr/include",
                    "C:/Users/me/Documents/PlatformIO/Projects/nixie_watch/.pio/build/nixie_watch/zephyr/include/generated",
                    "C:/Users/me/.platformio/packages/framework-zephyr/soc/arm/nordic_nrf/nrf52",
                    "C:/Users/me/.platformio/packages/framework-zephyr-segger/rtt",
                    "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic/nrfx",
                    "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic/nrfx/drivers/include",
                    "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic/nrfx/mdk",
                    "C:/Users/me/.platformio/packages/framework-zephyr-hal-nordic",
                    "C:/Users/me/.platformio/packages/framework-zephyr-cmsis/CMSIS/Core/Include",
                    "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/.pio/build/nixie_watch/zephyr/include/generated",
                    "C:/Users/me/.platformio/packages/tool-unity",
                    ""
                ]
            },
            "defines": [
                "PLATFORMIO=50001",
                "ARDUINO_NRF52_DK",
                "BUILD_VERSION=zephyr-v20300",
                "KERNEL",
                "NRF52832_XXAA",
                "_FORTIFY_SOURCE=2",
                "__PROGRAM_START",
                "__ZEPHYR__=1",
                ""
            ],
            "intelliSenseMode": "clang-x64",
            "cStandard": "c99",
            "forcedInclude": [
                "C:/Users/me/.platformio/packages/framework-zephyr/include/toolchain/zephyr_stdint.h",
                "C:/Users/me/Documents/PlatformIO/Projects/nixie_watch/.pio/build/nixie_watch/zephyr/include/generated/autoconf.h",
                ""
            ],
            "compilerPath": "C:/Users/me/.platformio/packages/toolchain-gccarmnoneeabi/bin/arm-none-eabi-gcc.exe",
            "compilerArgs": [
                "-mabi=aapcs",
                "-mcpu=cortex-m4",
                "-mthumb",
                "-isystem",
                "C:/Users/me/.platformio/packages/framework-zephyr/lib/libc/minimal/include",
                "-isystem",
                "c:/users/me/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/8.2.1/include",
                "-isystem",
                "c:/users/me/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/8.2.1/include-fixed",
                ""
            ]
        }
    ],
    "version": 4
}

extensions.json:

{

    // See http://go.microsoft.com/fwlink/?LinkId=827846

    // for the documentation about the extensions.json format

    "recommendations": [

        "platformio.platformio-ide"

    ]

}

launch.json:

// AUTOMATICALLY GENERATED FILE. PLEASE DO NOT MODIFY IT MANUALLY

// PIO Unified Debugger
//

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "platformio-debug",
            "request": "launch",
            "name": "PIO Debug",
            "executable": "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/.pio/build/nixie_watch/firmware.elf",
            "toolchainBinDir": "C:/Users/me/.platformio/packages/toolchain-gccarmnoneeabi/bin",
            "svdPath": "C:/Users/me/.platformio/platforms/nordicnrf52/misc/svd/nrf52.svd",
            "preLaunchTask": {
                "type": "PlatformIO",
                "task": "Pre-Debug"
            },
            "internalConsoleOptions": "openOnSessionStart"
        },
        {
            "type": "platformio-debug",
            "request": "launch",
            "name": "PIO Debug (skip Pre-Debug)",
            "executable": "c:/Users/me/Documents/PlatformIO/Projects/nixie_watch/.pio/build/nixie_watch/firmware.elf",
            "toolchainBinDir": "C:/Users/me/.platformio/packages/toolchain-gccarmnoneeabi/bin",
            "svdPath": "C:/Users/me/.platformio/platforms/nordicnrf52/misc/svd/nrf52.svd",
            "internalConsoleOptions": "openOnSessionStart"
        }
    ]
}

As far as I can tell, there are no board specific lines that I need to change. I know I am missing something in the project overall that tells the build system to use one board and not the other, I’m just not sure where that is.