Show HN: My hobby OS that runs Minecraft
astral-os.org106 points by avaliosdev 3 days ago
106 points by avaliosdev 3 days ago
> due to the mlibc code using the char value from the format string, the values above 127 passed by OpenJDK would be handled as negative integers
It's 2025 and I still don't get why Java needed signed chars and bytes. Why completely disregard the convenience of using them for array access/etc..
Java creators tried to avoid giving developers any sharp edges. Interactions between signed and unsigned integers can be surprising, so they disallowed unsigned integers.
Of course, not having access to unsigned quantities makes interaction with other programs difficult :(
The one that annoys me is that people think implicit type conversions are dangerous for some reason, so they also disallowed `char a = 10; short b = a;` without writing a cast even though this makes no sense.
Well done and thanks for sharing, it's great to see people making a hobby OS and it's awesome that it plays Minecraft! How long have you been working on Astral?
I love hobby OS projects, and it's good to see how many there continue to be posted here. I can never get enough! It looks like this one has some networking support as well.
This is very impressive! When I saw the title, I thought it would be classicube, but no, it's actual minecraft.
Love the Motif-style window borders!
Congrats! Seeing an old version of MC makes me nostalgic.
The “Astral from scratch guide“ idea really caught my eye.
Gotta say that would be a pretty cool evolution of DIY electronics kits to OS kits
I would be interested in a benchmark.
Better than Windows 11 already. I can't run Bedrock or Java without first signing into the Microsoft Store on "my" PC.
Good news, you too can run Minecraft Alpha 1.2.0 single player offline without signing in. That's not what made this impressive :).
Very inspiring!
[flagged]