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Jakob Meng JM1

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JM1 / cursor_review.md
Last active August 1, 2025 19:03
A Cursor review

A Cursor review

At Red Hat, we are currently evaluating Cursor. To gain hands-on experience, I began developing a Kubernetes device plugin that creates OVS VDUSE ports and exposes their vhost-vDPA char devices to pods (devel Jira task FDP-1513). The code is available in vduse-device-plugin. This plugin is part of proof of concept evaluating OpenShift and OVN-Kubernetes, where the primary network operates entirely in userspace (PoC story FDP-1286).

For this experiment, I am using Cursor-1.2.2-x86_64.AppImage with the [Claude Sonnet 4 model and Cursor's Max Mode](

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JM1 / counter-strike-2-dedicated-server.bu
Last active August 22, 2025 19:49
Butane config for Fedora CoreOS 39 and later which will run a Counter Strike 2 dedicated server in a Podman container.
# Copyright (c) 2024 Jakob Meng, <[email protected]>
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# A Butane config [0] for Fedora CoreOS 39 and later [1] which will run a Counter Strike 2 dedicated server [2] in a
# Podman container.
#
# First, customize all configuration settings marked with a TODO below. Then use Butane to translate it into a Ignition
# config [3]. With CoreOS Installer, embed it into a ISO or PXE image for Fedora CoreOS and/or to install Fedora CoreOS
# to bare metal [4] or a libvirt [5] virtual machine or a QEMU virtual machine [6].
#
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JM1 / pi-hole-install-guide.md
Last active July 2, 2021 13:42
Guide for self-updating Pi-hole setup on Raspberry Pi with IPv4 and IPv6
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JM1 / Ansible_Roles_with_OS-specific_Defaults.md
Last active June 14, 2025 16:06
Ansible Roles with OS-specific defaults

Ansible Roles with OS-specific Defaults

This Ansible guide discusses several approaches on how to set different role default variables based / depending on the host operating system aka ansible_distribution / ansible_facts.distribution or other variables. For example, a role variable image_uri should point to the latest cloud image for the host. For CentOS 8 or Red Hat Enterprise Linux (RHEL) 8 the default value should be:




  


  




    


          
    

      

        
        

          

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                JM1
                / README.md
            
            

              Last active
              July 10, 2019 08:36
            

              
                Fix linker errors with VTK-6.0 and MPICH
              
          

        

      

        

  

      

    
Fix linker errors with VTK-6.0 and MPICH


Suppose you build your C/C++ library using CMake and use find_package(VTK) to include VTK headers and libraries, at Ubuntu Trusty (14.04). You compile and link your code against another MPI implementation like MPICH, e.g. running cmake -DMPI_C_COMPILER=/usr/bin/mpicc.mpich -DMPI_CXX_COMPILER=/usr/bin/mpicxx.mpich ... You setup CMake to compile a C/C++ application and try to link it to your library.  The linker will throw an error at one of your library-exported MPI functions, e.g.:


/usr/bin/ld: CMakeFiles/main.cpp.o: undefined reference to symbol 'ompi_mpi_comm_null'
//usr/lib/libmpi.so.1: error adding symbols: DSO missing from command line



VTK 6.0 at Ubuntu Trusty (14.04) is linked against OpenMPI. The CMake files installed in line with VTK (/usr/lib/cmake/vtk-6.0/Modules/vtkParallelMPI.cmake) add the OpenMPI header paths to your library's CMake include directories:



  


  




    


          
    

      

        
        

          

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                JM1
                / README.md
            
            

              Last active
              July 5, 2019 10:25
            

              
                Fix CMake errors of VTK 6.0 with newer GCC revisions
              
          

        

      

        

  

      

    
Fix CMake errors of VTK 6.0 with newer GCC revisions


CMake files of VTK 6.0 do not handle newer GCC output correctly and thus fail with:


CMake Error at /usr/lib/cmake/vtk-6.0/GenerateExportHeader.cmake:177 (if):
  if given arguments:
    "gcc-8 (Ubuntu 8.1.0-5ubuntu1~14.04) 8.1.0
  Copyright (C) 2018 Free Software Foundation, Inc.
 This is free software" " see the source for copying conditions. There is




  


  




    


          
    

      

        
        

          

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                JM1
                / dockerctl
            
            

              Last active
              March 25, 2023 19:40
            

          

        

      

        

  

    
    


        



  


  

        

          
          #!/bin/sh
        

        

          
          # vim:set tabstop=8 shiftwidth=4 expandtab:
        

        

          
          # kate: space-indent on; indent-width 4;
        

        

          
          # shellcheck disable=SC2039
        

        

          
          #
        

        

          
          # Copyright (c) 2016-2022 Jakob Meng, <[email protected]>
        

        

          
          #
        

        

          
          # This program is free software: you can redistribute it and/or modify
        

        

          
          # it under the terms of the GNU General Public License as published by
        

        

          
          # the Free Software Foundation, either version 3 of the License, or
        

  





    


  




    


          
    

      

        
        

          

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                JM1
                / makeOpenWrtConfig.sh
            
            

              Last active
              November 15, 2017 18:51
            

          

        

      

        

  

    
    


        



  


  

        

          
          #!/bin/sh
        

        

          
          # vim:set tabstop=8 shiftwidth=4 expandtab:
        

        

          
          # kate: space-indent on; indent-width 4;
        

        

          
          #
        

        

          
          # Copyright (C) 2017 WEARENOTALONE
        

        

          
          #
        

        

          
          # Helper script for OpenWrt/LEDE configuration
        

        

          
          # References:
        

        

          
          #  https://www.reddit.com/r/openwrt/comments/515oea/finally_got_80211r_roaming_working/
        

        

          
          #  https://forum.openwrt.org/viewtopic.php?id=56546
        

  





    


  




    


          
    

      

        
        

          

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                JM1
                / RecoverKey.ps1
            
            

              Last active
              August 29, 2015 14:06
            

          

        

      

        

  

    
    


        



  


  

        

          
          # How To Recover Windows 7/8.1 Product Key Without Using Third-Party Tools
        

        

          
          # By Jakob Bindslet ([email protected])
        

        

          
          # Updated on Sep 26th, 2013
        

        

          
          #
        

        

          
          # Usage:
        

        

          
          #   Open Windows PowerShell as administrator
        

        

          
          #  C:\> $oldPolicy = Get-ExecutionPolicy
        

        

          
          #  C:\> Set-ExecutionPolicy RemoteSigned
        

        

          
          #   Click Enter key or 'Y' key when you see "Do you want to change the execution policy" message.
        

        

          
          #  C:\> Import-Module C:\Users\PC\Desktop\RecoverKey.ps1; Get-WindowsKey