cyber-murmel

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
#include <math.h> // compile with -lm

#define MASK(LEN) ((1<<LEN)-1)
#define GET_BITS(VAR, POS, NUM) ((VAR>>POS) & MASK(NUM))
#define GET_BIT(VAR, POS) GET_BITS(VAR, POS, 1)

cyber-murmel

OpenWRT supports the ESPRESSObin Ultra since 2020. Official builds are available.

In thins gist I want to explain how to install the image onto the board via a USB thumb drive.

All you need

• ESPRESSObin Ultra
• 12V 2A DC or PoE power supply
• USB A to USB Micro-B cable
• wired internet connection

cyber-murmel

{config, pkgs, lib, ...}: {
  users.users.satisfactory = {
    home = "/var/lib/satisfactory";
    createHome = true;
  };

  nixpkgs.config.allowUnfree = true;

  systemd.services.satisfactory = {
    wantedBy = [ "multi-user.target" ];

cyber-murmel

diff --git a/src/platforms/common/cdcacm.c b/src/platforms/common/cdcacm.c
index 399dd3d..d56d10e 100644
--- a/src/platforms/common/cdcacm.c
+++ b/src/platforms/common/cdcacm.c
@@ -451,12 +451,17 @@ static enum usbd_request_return_codes  cdcacm_control_request(usbd_device *dev,
 	case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
 		cdcacm_set_modem_state(dev, req->wIndex, true, true);
 		/* Ignore if not for GDB interface */
-		if(req->wIndex != GDB_IF_NO)
+		switch(req->wIndex) {

cyber-murmel

This is the gist of how to setup a NixOS server on a Hetzner Cloud instance with an admin user, ssh access and configuration management via git.

1. Create a Hetzner Cloud instance and click to enter it.
2. Stop the instance (top right corner icon).
3. Go to ISO Images.
4. Search for "nixos" and click mount.
5. Start the instance again (top right corner icon).
6. Open the console (top right corner icon).
7. Get the IP address by executing ip --brief --color address. The address can also be optained from the Hetzner Cloud web interface.

cyber-murmel

This gist shows you how to install Minecraft Forge on a NixOS server. It is based on my NixOS on Hetzner Cloud gist.

1. Add ./minecraft.nix to the imports in ~/repos/configuration/default.nix.
2. Paste the following in ~/repos/configuration/minecraft.nix.

{ config, pkgs, ... }:

{
  users = {

cyber-murmel

{ config, pkgs, lib, ... }:

let
  nvidia-offload = pkgs.writeShellScriptBin "nvidia-offload" ''
    export __NV_PRIME_RENDER_OFFLOAD=1
    export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
    export __GLX_VENDOR_LIBRARY_NAME=nvidia
    export __VK_LAYER_NV_optimus=NVIDIA_only
    exec "$@"
  '';

cyber-murmel

# build with `nix-build IceSL.nix`

{ pkgs ? import
    (builtins.fetchGit {
      name = "nixos-22.11-2023_01_01";
      url = "https://github.com/nixos/nixpkgs/";
      ref = "refs/heads/nixos-22.11";
      rev = "913a47cd064cc06440ea84e5e0452039a85781f0";
    })
    { }

cyber-murmel

size = 1;
dx = 25;
dy = 25;

module striped_square(size = 1, length = 1, num_stripes = 2) {
    color("teal")
        for(stripe = [1:num_stripes]) {
            if((stripe % 2) == 1) {
                polygon([[stripe-1, 0], [stripe,0], [0, stripe], [0,stripe-1]]*size/num_stripes);
            }

cyber-murmel

{
  pkgs ?
  import (builtins.fetchGit {
    name = "nixos-22.11-2023_01_14";
    url = "https://github.com/nixos/nixpkgs/";
    ref = "refs/heads/nixos-22.11";
    rev = "e285dd0ca97c264003867c7329f0d1f4f028739c";
  }) {}
}: