for (0..cart.neopixels.len) |i| {
        const diff = @abs(@as(i32, @intCast(i)) - @as(i32, @intCast(pixel_pos)));
        cart.neopixels[i] = switch (diff) {
            0 => .{ .r = 50, .g = 50, .b = 0 },
            1 => .{ .r = 40, .g = 40, .b = 0 },
            2 => .{ .r = 30, .g = 30, .b = 0 },
            3 => .{ .r = 20, .g = 20, .b = 0 },
            else => .{ .r = 10, .g = 10, .b = 0 },
        };
    }

for (0..cart.neopixels.len) |i| {
        const diff = @abs(@as(i32, @intCast(i)) - @as(i32, @intCast(pixel_pos)));
        cart.neopixels[i] = switch (diff) {
            0 => .{ .r = 50, .g = 50, .b = 0 },
            1 => .{ .r = 40, .g = 40, .b = 0 },
            2 => .{ .r = 30, .g = 30, .b = 0 },
            3 => .{ .r = 20, .g = 20, .b = 0 },
            else => .{ .r = 10, .g = 10, .b = 0 },
        };
    }

install
└─ install generated to hello.uf2
   └─ run elf2uf2 (hello.uf2)
      └─ zig build-exe hello ReleaseSafe thumb-freestanding-eabi failure
error: error: <inline asm>:3:1: symbol 'initial_pause' is already defined
initial_pause:

install
└─ install generated to hello.uf2
   └─ run elf2uf2 (hello.uf2)
      └─ zig build-exe hello ReleaseSafe thumb-freestanding-eabi failure
error: error: <inline asm>:3:1: symbol 'initial_pause' is already defined
initial_pause: