fix(opengl): properly control whether vsync is enabled

LUT probably couldn't fit in CPU cache anyways.

TODO: Consider whether LUTs for separate channels (size 32 * 3 * 3
instead of std.math.maxInt(u15))

src/core/bus/gpio.zig

@@ -68,6 +68,8 @@ pub const Gpio = struct {
         log.info("Device: {}", .{kind});
 
         const self = try allocator.create(Self);
+        errdefer allocator.destroy(self);
+
         self.* = .{
             .data = 0b0000,
             .direction = 0b1111, // TODO: What is GPIO DIrection set to by default?