Johan Guldmyr

k8squest. K8sQuest — A local, hands-on Kubernetes learning game with real-world troubleshooting challenges. Practice Pods, Deployments, Services, networking, storage, and debugging using kubectl on a local cluster (kind/k3d). No cloud required.

server-survival. Tower defense game that teaches cloud architecture. Build infrastructure, survive traffic, learn scaling.

polestar2-emergency-info. Various bits of useful information for when something goes wrong

dyad. Local, open-source AI app builder for power users ✨ v0 / Lovable / Replit / Bolt alternative 🌟 Star if you like it!

pam-duress. A Pluggable Authentication Module (PAM) which allows the establishment of alternate passwords that can be used to perform actions to clear sensitive data, notify IT/Security staff, close off sensitive network connections, etc if a user is coerced into giving a threat actor a password.

Youtube-playlist-to-formatted-text. A desktop application that extracts YouTube playlist transcripts and enhances them using Google's Gemini AI models. The output is a book in any language you want.

liero. C

pearl-hunt. Loihde's CTF Challenge for Disobey 2025

cluster-health. Scripts for managing a large H100 cluster and fixing hardware issues to ensure smooth model training.

gitbutler. The GitButler version control client, backed by Git, powered by Tauri/Rust/Svelte

nvbmc-docs. Documentation for Nvidia OpenBMC stack

jj. A Git-compatible VCS that is both simple and powerful

gpud. GPUd automates monitoring, diagnostics, and issue identification for GPUs

ml-engineering. Machine Learning Engineering Open Book

forge. Forge - Tiling and Window Manager for Gnome-Shell

awesome-production-machine-learning. A curated list of awesome open source libraries to deploy, monitor, version and scale your machine learning

fheroes2. fheroes2 is a recreation of Heroes of Might and Magic II game engine

zarf. The Airgap Native Package Manager for Kubernetes

Piped. An alternative privacy-friendly YouTube frontend which is efficient by design.

openbao. OpenBao is a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys.

icanhaspii.github.io.

keeperfx. Open source remake and Fan Expansion of Dungeon Keeper.

ruff. An extremely fast Python linter and code formatter, written in Rust.

linuxworldcup. Linux World Cup

manifesto. The OpenTF Manifesto expresses concern over HashiCorp's switch of the Terraform license from open-source to the Business Source License (BSL) and calls for the tool's return to a truly open-source license.

searxng. SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.

capa. The FLARE team's open-source tool to identify capabilities in executable files.

jukola-xml-model. Analyze and estimate Jukola Relay results

gsocket. Connect like there is no firewall. Securely.

PPN. Pentester's Promiscuous Notebook

Ciphey. ⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡

Privilege-Escalation. This cheasheet is aimed at the CTF Players and Beginners to help them understand the fundamentals of Privilege Escalation with examples.

disobeyrecon23.github.io. Workshop slides

wasthereannhlgamelastnight. :calendar: A YES/NO app to show the answer to: Was There An NHL Game Yesterday ?

CTFs. CTF Cheat Sheet + Writeups / Files for some of the Security CTFs that I've done

form. The FORM project for symbolic manipulation of very big expressions

easydiffusion. An easy 1-click way to create beautiful artwork on your PC using AI, with no tech knowledge. Provides a browser UI for generating images from text prompts and images. Just enter your text prompt, and see the generated image.

dcss-stats. Player and game statistics for open source roguelike game Dungeon Crawl Stone Soup Online

kyocera-certificate-deploy. Python

ansible-role-fgci-install. FGCI Install node deployment Ansible Role

prometheus-usb-detection. prometheus alarm for (dis)connecting usb-devices

kitty. If you live in the terminal, kitty is made for you! Cross-platform, fast, feature-rich, GPU based.

sloth. 🦥 Easy and simple Prometheus SLO (service level objectives) generator

KQCircuits. KLayout Python library for integrated quantum circuit design.

Certified-Kubernetes-Security-Specialist. Curated resources help you prepare for the CNCF/Linux Foundation CKS 2021 "Kubernetes Certified Security Specialist" Certification exam. Please provide feedback or requests by raising issues, or making a pull request. All feedback for improvements are welcome. thank you.

atomic-threat-coverage. Actionable analytics designed to combat threats

kube-linter. KubeLinter is a static analysis tool that checks Kubernetes YAML files and Helm charts to ensure the applications represented in them adhere to best practices.

sysmon-config. Sysmon configuration file template with default high-quality event tracing

basecrack. Decode All Bases - Base Scheme Decoder

Bringing-Old-Photos-Back-to-Life. Bringing Old Photo Back to Life (CVPR 2020 oral)

gitlab-ci-pipelines-exporter. Prometheus / OpenMetrics exporter for GitLab CI pipelines insights

CF-Installer. These scripts help to create a bootable cf-drive for brocade switches on linux machines.

awesome-keycloak. A curated list of resources for learning about http://www.keycloak.org

prophet. Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or non-linear growth.

prometheus-vcd-sd. Prometheus Service Discovery for VMWare vCloud Director

awesome-prometheus-alerts. 🚨 Collection of Prometheus alerting rules

community.grafana. Grafana Collection for Ansible

Prometheus-Basics. Prometheus-Basics is part of Prometheus Docs now, checkout 👇

client_python. Prometheus instrumentation library for Python applications

separator-generator. A generator for section separators

barcodes. Turn a CSV file with "name,reference ID" into invoices

teleport. The easiest, and most secure way to access and protect all of your infrastructure.

advent2019-gift. C++

check_redfish. A monitoring/inventory plugin to check components and health status of systems which support Redfish. It will also create an inventory of all components of a system.

img_rec_tf_ml_demo. Image Recognition Using TensorFlow Machine Learning Demo to recognize Apples from Bananas

kallebingo. kallebingo.se

pr-lint-action. :octocat: PR lint for GitHub Actions

awesome-actions. A curated list of awesome actions to use on GitHub

BGPalerter. BGP and RPKI monitoring tool. Pre-configured for real-time detection of visibility loss, RPKI invalid announcements, hijacks, ROA misconfiguration, and more.

mapwatch. [unmaintained] Automatically time your Path of Exile map clears

hitchhikersguide. The Hitchhiker's Guide to the Galaxy, by Steve Meretzky and Douglas Adams (Infocom)

s3-benchmark. Measure Amazon S3's performance from any location.

ssh_scan. DEPRECATED - A prototype SSH configuration and policy scanner (Blog: https://mozilla.github.io/ssh_scan/)

Pi-Hole-PiVPN-on-Google-Compute-Engine-Free-Tier-with-Full-Tunnel-and-Split-Tunnel-OpenVPN-Configs. Run your own privacy-first ad blocking service in the cloud for free on Google Cloud Services.

bw_plex. binge watching for plex

black. The uncompromising Python code formatter

ansible-role-bootstrap. Prepare your system to be managed by Ansible.

openstack-upgrade-recipes. Upgrade procedure for Liberty to Newton

mitogen. Distributed self-replicating programs in Python

py-spy. Sampling profiler for Python programs

n4d. network4dev.net website

slurm-qog. Perl script to generate "quality-of-guess" feedback for users about their requested Slurm walltimes.

ansible-role-interfaces. An ansible role for configuring different network interfaces

netassert. Network security testing for Kubernetes DevSecOps workflows

30-seconds-of-css. Short CSS code snippets for all your development needs

gitleaks. Find secrets with Gitleaks 🔑

iDRAC-Redfish-Scripting. Python and PowerShell scripting for Dell EMC PowerEdge iDRAC REST API with DMTF Redfish

awesome-scalability. The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

linchpin. ansible based multicloud orchestrator

smenu. smenu started as a lightweight and flexible terminal menu generator, but quickly evolved into a powerful and versatile CLI selection tool for interactive or scripting use.

profile-summary-for-github. Tool for visualizing GitHub profiles

what-happens-when-k8s. 🤔 What happens when I type kubectl run?

carbonzipper. proxy to transparently merge graphite carbon backends

redfish-ansible-module. Ansible modules for Out-Of-Band Controllers using Redfish APIs

ansigenome. A tool to help you gather information and manage your Ansible roles.

sysdig-inspect. Sysdig Inspect - A powerful opensource interface for container troubleshooting and security investigation

awx. AWX provides a web-based user interface, REST API, and task engine built on top of Ansible. It is one of the upstream projects for Red Hat Ansible Automation Platform.

oklog. A distributed and coördination-free log management system

SecGen. Create randomly insecure VMs

nvidia-docker. Build and run Docker containers leveraging NVIDIA GPUs

community-edition. Free and Open Source messaging and emailing app that combines common web applications into one.

Index-2026. HTML

risu. Automation Troubleshooting Framework to validate and report configuration, software installed, etc with bash, python, and your language of choice.

ubuntuonwindows. Resources, tips, known issues etc for "Bash On Ubuntu On Windows"

singularity-web. examples of using Singularity containers for web-based products

lastpass-ansible. Unlock Ansible Vault with passwords stored in LastPass automatically

icingaweb2-module-director. The Director aims to be your favourite Icinga config deployment tool. Director is designed for those who want to automate their configuration deployment and those who want to grant their “point & click” users easy access to the configuration.

python-fire. Python Fire is a library for automatically generating command line interfaces (CLIs) from absolutely any Python object.

snabb. Snabb: Simple and fast packet networking

tlog. Terminal I/O logger

cmdchallenge. This repo is mirror of https://gitlab.com/jarv/cmdchallenge

1. Automatic PR merging. Where shall we go?

big-list-of-naughty-strings. The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

systemdlogger. Exports systemd logs to an external service, eg cloudwatch, elasticsearch

ansible_stdout_compact_logger. Ansible Stdout Compact Logger

ansible-tuto. Ansible tutorial

slow_cooker. A load tester focused on lifecycle issues and long-running tests

grafanalib. Python library for building Grafana dashboards

jid. json incremental digger

tvcl. A simple TV show tracker CLI

OpenPHT. OpenPHT is a community driven fork of Plex Home Theater

netmiko. Multi-vendor library to simplify Paramiko SSH connections to network devices

HackTheVote. Handouts, setup scripts, sources, and solutions for challenges from Hack The Vote CTFs

lynis. Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.

android. Bitwarden mobile apps (Password Manager and Authenticator) for Android.

ansible-review. Python

mirage. :art: GUI for simplifying Elasticsearch Query DSL

tetros. Tetris that fits into the boot sector.

pghero. A performance dashboard for Postgres

ungoogled-chromium. Google Chromium, sans integration with Google

good-enough-practices-in-scientific-computing. Minimalist alternatives to "best practices" paper

411. An Alert Management Web Application

granim.js. Create fluid and interactive gradient animations with this small javascript library.

terrain. Fantasy map generator

kilo. A text editor in less than 1000 LOC with syntax highlight and search.

dcache. dCache - a system for storing and retrieving huge amounts of data, distributed among a large number of heterogenous server nodes, under a single virtual filesystem tree with a variety of standard access methods

ansible-dumpall.

ansible-quickref. Quick reference for Ansible variables

ansible-role-kvm-guest-openstack-image. Create and start a KVM guest from and OpenStack image

dcache-shellutils. shell utilities to operate on the dcache grid storage manager

ansible-role-vminstaller. Ansible VMInstallre role

octotree. GitHub on steroids

distributedlog. A high performance replicated log service. (The development is moved to Apache Incubator)

mqansibleconsumer. Framework for creating ActiveMQ/RabbitMQ consumers the run Ansible jobs

certbot. Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.

gitsome. A supercharged Git/GitHub command line interface (CLI). An official integration for GitHub and GitHub Enterprise: https://github.com/works-with/category/desktop-tools

passbolt_api. Passbolt Community Edition (CE) API. The JSON API for the open source password manager for teams!

elastalert. Easy & Flexible Alerting With ElasticSearch

git-mirror. Host Git repository mirrors with ease

redshift. Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.

command. :black_nib: Making the web better with Slack-like slash commands.

kexec-reboot. Reboot in seconds, not minutes

freeipa-workshop. Hands-on FreeIPA workshop curriculum

mpisweep. MPI sweep diagnostic

netdata. The fastest path to AI-powered full stack observability, even for lean teams.

citus. Distributed PostgreSQL as an extension

HowToBeAProgrammer. A guide on how to be a Programmer - originally published by Robert L Read

statuspage. A statuspage generator that lets you host your statuspage for free on Github.

awesome-postgres. A curated list of awesome PostgreSQL software, libraries, tools and resources, inspired by awesome-mysql

cz-cli. The commitizen command line utility. #BlackLivesMatter

upgrade-guide-213. Community effort to write an upgrade guide for dCache 2.13

diff-so-fancy. Make your diffs human readable for improved code quality and faster defect detection. :tada:

digitransit-ui. Digitransit UI ("Reittiopas.fi")

borg. Deduplicating archiver with compression and authenticated encryption.

python-hpilo. Accessing the HP iLO XML interface from python

nagioscheckbeat. An Elastic Beat for all the Nagios checks

semaphore. Modern UI and powerful API for Ansible, Terraform/OpenTofu/Terragrunt, PowerShell and other DevOps tools.

z. z - jump around

write-ups-2015. Wiki-like CTF write-ups repository, maintained by the community. 2015

dockerized_nfs_server. Dockerized NFS server - NFS server as a docker container

nhc. LBNL Node Health Check

git-remote-dropbox. A transparent bridge between Git and Dropbox - use a Dropbox (shared) folder as a Git remote! 🎁

SSHaudit. Audit your GitHub Organization users' SSH keys for key length and type

fgci-ansible. :microscope: Collection of the Finnish Grid and Cloud Infrastructure Ansible playbooks

irssi. The client of the future

wrk. Modern HTTP benchmarking tool

source-code-pro. Monospaced font family for user interface and coding environments

upterm. A terminal emulator for the 21st century.

slurm-stats. Scripts for gathering SLURM statistics

teleirc. A simple Telegram ↔ IRC gateway.

Simple-Echo-Telegram-Bot. A simple Python Telegram bot that echoes your input. Uses Flask, setWebhook method, and Google App Engine (optional)

Encryptr. Encryptr is a zero-knowledge cloud-based password manager / e-wallet powered by Crypton

gmvault. gmail backup software

jmxtrans. jmxtrans

grafana. The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

clipmenu. Clipboard management using dmenu

git-commander. A git tool with an easy terminal interface.

tg. telegram-cli

gitd. A way of notifying you of git commits (Note: https://github.com/sickill/git-dude is better than this in pretty much every way)

automated_HP_Firmware_upgradation. This repository automates HP firmware upgradation process using ansible.

awesome-sysadmin. A curated list of amazingly awesome open-source sysadmin resources.

curl. A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

logstash.vim. highlights logstash configuration files

audiogrep. Creates audio supercuts.

FiSH-irssi. FiSH is an encryption add-on module for irssi.

PerfKitBenchmarker. PerfKit Benchmarker (PKB) contains a set of benchmarks to measure and compare cloud offerings. The benchmarks use default settings to reflect what most users will see. PerfKit Benchmarker is licensed under the Apache 2 license terms. Please make sure to read, understand and agree to the terms of the LICENSE and CONTRIBUTING files before proceeding.

shellcheck. ShellCheck, a static analysis tool for shell scripts

elasticsearch-kopf. web admin interface for elasticsearch

drive. Google Drive client for the commandline

pushbullet-cli. Access Pushbullet from the command line