/

• .gitignore
• .obsidian
• .trash
• A nice way to select IPv4 addresses with JQ.md
• A nice way to test flake output.md
• A place is anything that is valid to put on the left-hand side of an assignment.md
• A reason for becoming senior is that when Rutger is off I take most of his responsibilities.md
• A scope block is an expression.md
• A useful Go oneliner to run a fileserver.md
• About keyboard layout on Wayland.md
• Access another repository from a gitlab CI job.md
• Accessed data from dereferencing a pointer cannot be mutated.md
• Accessing a tuple by index is different from an array.md
• Adding a semicolon to the end of a line turns it into a statement.md
• Adding new vendor module to the fixture for spec tests.md
• Aliasing just means that multiple variables point to the same heap data.md
• An empty tuple is called a unit.md
• Ansible ad-hoc commands.md
• Application credentials.md
• Array notation.md
• Arrays are useful when you know the length will not change.md
• Attributes.md
• Automatic configuration deployment with NixOS.md
• BFD = Bidirectional Forwarding Detection.md
• Bake.md
• Base elements.md
• Bash Arrays.md
• Bash.md
• Basic building blocks of Nix.md
• Becoming a Senior.md
• Benchmarking code in Golang.md
• Bilat 20 Augustus 2025.md
• Bilat 23 July 2025.md
• Bilat 25 juni 2025.md
• Bilat 6 Augustus 2025.md
• Bilat 9 july 2025.md
• Bilaterale gesprekken met Rutger.md
• Booting a NixOS on OpenStack.md
• Box deallocation principle.md
• Buffer Protocol.md
• Build custom modules as profiles to manage various NixOS hosts.md
• Building Go applications or packages with Nix.md
• Building NixOS disk images using disko.md
• Building Skypiea an OpenStack Dashboard.md
• Building a command-line using arrays.md
• CSS.md
• Cargo.md
• Changing the volume type of a Cinder volume.md
• Char is a unicode scalar value.md
• Checklist for network node issues after rebooting.md
• Chef.md
• Cirros is recommened as the image to use in tests.md
• Cleaning the Nix store.md
• Cleanup queues without consumers.md
• Clone a reference in a function to modify it.md
• Cloning a box does a deep copy of the heap data.md
• Cluster issues openstack.md
• Conditional.md
• Connexion.md
• Conway's Law.md
• Cool Python packages.md
• Creating a devshell with Nix flakes.md
• Creating a reference to a variable is called borrowing.md
• Creating the screen border with correct convex rounding.md
• DON'T organize your zettelkasten by Morganeua (YT) - 2024.md
• Daily.md
• Data must outlive any references to it.md
• Debugging issues with updating Puppet dependency.md
• Defer borrow checking to runtime with garbage collection.md
• Delayed conditionals.md
• Dereferencing is to access the data behind a pointer.md
• Detroit-style TDD.md
• Device mapper.md
• Difference between string slice and slice of strings.md
• Discovery Testing.md
• Distinction between imperative and declarative programming.md
• Docker images.md
• Docker-in-docker.md
• Docker.md
• Document structure.md
• Don't mock what you don't own.md
• Downgrading a mutable reference.md
• EF00 partition.md
• EF02 partition.md
• Enable logging with Libvirt.md
• Excalidraw
• Executing background tasks from a script.md
• Executing bash commands as another user.md
• Exposing development headers on Nixos.md
• External Tools.md
• Freenet CPU steal graph.md
• Game Engine Development.md
• Git ignore.md
• Git.md
• Gitlab CI job artifacts.md
• Gitlab Docs - Resource Group.md
• Gitlab Docs.md
• Gitlab.md
• Globbing patterns.md
• Go Compiler.md
• Go Flags.md
• Go Packages.md
• Go Source Files.md
• Go Strings.md
• Go Tools.md
• Gobs Ceph Client Key Access.md
• Golang.md
• GroupONE.md
• GroupVPS Migration.md
• GroupVPS Platform.md
• GroupVPS.md
• HTML.md
• HTTP Authentication Schemes.md
• HTTP.md
• Hardware.md
• Heredoc struggles.md
• Heredoc.md
• High Gear Low Gear Testing.md
• High Latency TCP Might Be Caused By TCP No Delay.md
• Holy Grail Layout.md
• How to RIP (grep).md
• How to properly do options in a bash script with getopt!.md
• How to see over which network nodes traffic is being routed.md
• How to show the mysql galera cluster status.md
• Hypotheekrenteaftrek.md
• I'm worried that Freenet will completely go DOWN due to OVN upgrade.md
• IP migration API.md
• Ideas versus facts.md
• If is not a statement but an expression.md
• Ignoring a file that is already committed.md
• Importing GPG keys from a keyserver.md
• Income tax statement and reductions from mortgage.md
• Inheriting from sets.md
• Input redirection.md
• Installing Ceph on devstack.md
• Installing a devstack plugin.md
• Integers can overflow if compiled with --release.md
• It is illegal to create a mutable reference while an immutable reference is live.md
• It is not possible to do a chain assignment.md
• It's recommended to use small-medium ARC for hypervisors where ZFS is used.md
• Item Size Position.md
• Items that are always imported by default in Rust are called the prelude.md
• JQ data types.md
• JQ.md
• LVM.md
• Layouts.md
• Libvirt.md
• Lifetime specifier.md
• Lifetime.md
• Link elements.md
• Linux.md
• List of tags I use in this Vault and their purpose.md
• Listing queues.md
• London-style TDD.md
• London-style versus Detroit-style TDD.md
• Lookahead.md
• Loop devices.md
• Loop labels.md
• Loop over an array with for-in.md
• Makefiletutorial.com.md
• Making notes useful.md
• Managing Ceph on Devstack & OpenStack.md
• Managing the amount of WSGI processes ran by apache is done from the apache site configuration.md
• Manila.md
• Meta elements.md
• Mocks aren't stubs.md
• Move ownership out of the function.md
• Moved heap data principle.md
• Mutable references are safe because they prevent aliasing.md
• MySQL.md
• Native Protocol - Web.md
• Network outage on single hypervisor causes Freenet to shutdown EVERYTHING.md
• Nix derivations.md
• Nix direnv.md
• Nix flakes.md
• Nix stdenv.md
• Nix.md
• NixOS - Advantage of imperative container management.md
• NixOS - Container networking.md
• NixOS - Containers.md
• NixOS - Declarative container management.md
• NixOS - Imperative container management.md
• NixOS - container directories.md
• NixOS modules.md
• NixOS.md
• Non Capturing Groups.md
• Notes on Sanoid usage for VPS platform.md
• Nova compute evacuation.md
• Null substitution.md
• OTF Code Style.md
• OTF Files.md
• OTF OpenStack Provider.md
• OTF Providers.md
• OTF versioning.md
• OVN Clusters.md
• OVN upgrade playbook.md
• OVN upgrade.md
• OneHome OneCRM One.com and more fun things.md
• OpenStack.md
• OpenTofu and Terraform.md
• Openstack project requirements.md
• Option declarations.md
• Overview of Ceph.md
• Ownership.md
• Parallellizing go tests.md
• Parameter subsitution.md
• Pass arguments to JQ.md
• Passing a pointer to heap data as an argument to a function transfers its ownership.md
• Pasted image 20250506224453.png
• Pasted image 20250623162525.png
• Pasted image 20250804184242.png
• Pattern matching with a match expression.md
• PipeWire.md
• Pointer safety principle.md
• Port stuck in migrating.md
• Practice summarizing and paraphrasing.md
• Primitive values such as the array are allocated on the stack.md
• Process substition (tmp file).md
• Project naming conventions.md
• Prometheus endpoints.md
• Protocol Buffers - protobuf.dev.md
• Provide a slot by the caller.md
• Puppet.md
• Pytest.md
• Python Match statements.md
• Python.md
• QtQuick.md
• Quickshell.md
• Quorum Queues.md
• RabbitMQ Cluster.md
• RabbitMQ.md
• Raid Controller (BBU).md
• Rand Crate for random numbers.md
• Random notes on Freenet deployment.md
• Reading a file line-by-line in Python is easy with a for loop.md
• Recipes run only once and the attributes are taken by last processed role.md
• Redirecting output during testing.md
• References are also immutable by default.md
• References temporarily remove permissions.md
• Referencing a nix flake.md
• Regex.md
• Reinstalling packages with APT.md
• Relationships Puppet.md
• Requesting PTR zones for IP ranges.md
• Resetting cluster members.md
• Resource groups for mutual exclusive running of jobs.md
• Return a static literal.md
• Returning values from loops.md
• Rewriting subselect into just an additional join.md
• Rust Collections.md
• Rust Control Flow.md
• Rust Data Types.md
• Rust Hash Map.md
• Rust Looping.md
• Rust Ownership.md
• Rust Principles.md
• Rust String.md
• Rust Vector.md
• Rust struct associated functions.md
• Rust struct init shorthand.md
• Rust struct update syntax.md
• Rust types.md
• Rust.md
• SOPs.md
• Saturating a value when wrapping.md
• Script elements.md
• Secrets with Agenix.md
• Semantic HTML.md
• Setting traps.md
• Shadowing variables.md
• Shell.md
• Shortening the lifetime of borrowed variables before mutating it.md
• Smaller flavors are recommended due to their faster boot times.md
• Source notes and note notes.md
• Spec Testing.md
• Specifying a License in a Flake output.md
• Statement vs expression.md
• Static class functions are called associated functions.md
• Submodules.md
• Switch networks and external networks on OS5.md
• Systemd input output redirection.md
• Systemd timer.md
• Systemd.md
• TCP.md
• TDD.md
• TODO's in Zettelkasten?.md
• TTL and Expiration.md
• Table driven tests.md
• Tagging.md
• Tempest Plugin.md
• Tempest.md
• Temporary set permissions with which new files are created.md
• Terraform Style Guide.md
• Terraform block.md
• Test fixture.md
• Testing Golang programs.md
• The Go Programming Language - A Donovan, B Kernighan - 2015.md
• The option enum.md
• There is no truthiness.md
• Timers.md
• To put data on the heap use a Box.md
• Trigger a service refresh with Puppet.md
• UEFI Boot OpenStack Nova.md
• Undefined behaviour is caught by the compiler.md
• Updating the image os admin user to fix password resets.md
• Use YAML anchors to reuse scripts in Gitlab CI.md
• Use ssh -O exit user@host to exit a control master session.md
• Useful sysdoc links.md
• Using Ansible wait_for to wait until a file exists.md
• Using JQ to construct an array and filtering empty strings.md
• Using Libvirt to manage QEMU image bitmaps.md
• Variables are subject to permissions similar to files on linux.md
• Variables lives on the stack.md
• Verified fake.md
• We don't support filesystem discard syscalls on our openstack platform.md
• Wedding Vows.md
• Wedding.md
• What are Type Assertions in Go and when to use them.md
• What is TCP KeepAlive.md
• What is a segmentation fault.md
• When heap data is deallocated.md
• Why is it called destructuring.md
• Why it is good to learn rust.md
• Working with Nix shells.md
• Writing a UI library in Golang.md
• Writing a blog.md
• Writing a test double before the real implementation gives feedback on design.md
• YAGNI.md
• Zettelkasten - Applicable to DevOps.md
• Zettelkasten - Core Principle Atomicity.md
• Zettelkasten - Core Principle Connectedness.md
• Zettelkasten - Core Principle Emergence.md
• Zettelkasten - Core Principle Individuality.md
• Zettelkasten - Filename Best Practices.md
• Zettelkasten - Level of atomicity.md
• Zettelkasten - Personality.md
• Zettelkasten - Using Identifiers.md
• Zettelkasten.md
• ceilometer data is going into Prometheus as Ihor fixed the out of order issue.md
• git-crypt.md
• ipcalc.md