Today I learned

This is just a list of posts were I keep track of my progress as a user of this digital age. Anything that I found interesting and useful I write down. Hopefully, that as the years go by, I can have a nice collection of TILs. you are one of the lucky 10000 people that learned something new

June 23, 2026. nixos Systemd path
June 17, 2026. bash Vim mode bash/zsh
June 8, 2026. bash diffing two dirs
May 28, 2026. systemd journalctl output
September 23, 2024. nix Encrypting a binary file with agenix
September 23, 2024. nix Nix generators in lib
September 18, 2024. git Show ssh agent keys
September 15, 2024. nix Viewing lambda function arguments
May 31, 2024. devops Prometheus Agent Mode
May 30, 2024. linux Input vs Forward chain nftables
May 30, 2024. nixos nixos-anywhere command
May 29, 2024. nixos Flakes Custom Nixpkgs
May 3, 2024. macos Allow in background scripts
April 19, 2024. linux LSPCI show verbose log
March 30, 2024. git Grep commit changes
February 17, 2024. ssh Calculate sha256 ssh key fingerprint
February 17, 2024. firewall rpfilter
January 16, 2024. ssh Do not add host key to `~/.ssh/known_hosts`
October 30, 2023. nixos Linux Builder Darwin lost connection
October 27, 2023. macos using `dd` with macos
October 27, 2023. nixos Nix fileSytem mounting by gid
October 12, 2023. systemd systemd-analyze security <name>.service
September 25, 2023. nixos Propagating flake inputs
September 21, 2023. vim Maximize window
September 15, 2023. nix Dirty Git tree
September 7, 2023. devops Hermetic
August 28, 2023. nixos IFD (Import From Derivation)
August 18, 2023. nixos C_INCLUDE_PATH vs CPLUS_INCLUDE_PATH
May 16, 2023. nixos Nix Repl + Flakes
May 16, 2023. nixos Home Manager
October 31, 2022. linux zpool encryption
August 9, 2022. nixos Flake Inputs URL spec
July 13, 2022. git Comparing commits to master
June 30, 2022. python Using lambdas
June 19, 2022. nixos Completely offline nix store
June 16, 2022. linux Mounting zfs
June 7, 2022. nixos User Groups with NixOS
March 8, 2022. nixos Reducing internet download of nix flakes
November 26, 2021. go Error Chains
November 10, 2021. rust Unwrap vs Expect
October 8, 2021. postgres Encode Postgres Buffer bytea1
July 23, 2021. docker Docker User in Containers
July 2, 2021. aws Smarter way of hanlding dns updates
April 24, 2021. linux Looking at boot logs
March 11, 2021. nixos Using the nixpkgs packages
February 12, 2021. nixos Clang llvm
February 12, 2021. nixos Calculating Nix Hash
February 10, 2021. go Server Mux
January 25, 2021. linux Ulimit values
December 11, 2020. firefox Disable sharing scree privacy indicator
December 8, 2020. nixos Development libraries in Nix
December 8, 2020. nixos Declaring NixOS modules gotchas
December 8, 2020. nixos installing build output
November 25, 2020. vim Select column vertically
November 12, 2020. vim CoC keyboard shortcuts
November 11, 2020. nixos Custom Nixpkgs
October 9, 2020. linux Linux network namespace
September 1, 2020. nixos Get a derivation from a store path
July 18, 2020. devops Devops Terminology
June 26, 2020. docker Obtain the keys for "--format" flag
June 22, 2020. nixos Updating Niv
June 22, 2020. nixos NixOS Generation
May 14, 2020. docker Docker build kit
February 27, 2020. nixos Environment vars in nix shell
February 21, 2020. standards UTF8 bit sequences
January 31, 2020. sql Lessons from Khan academy
January 28, 2020. jq JQ tricks
January 24, 2020. go Interface signature for Function
January 22, 2020. docker Re-tagging a docker image
December 5, 2019. taskwarrior Colors for different task
November 29, 2019. gpg GPG Key flag subtype
November 26, 2019. go Mutex and locking
November 21, 2019. go Defer, panic, and recover
November 14, 2019. rust Structs
November 13, 2019. rust Arrays
November 13, 2019. rust Slices
November 13, 2019. rust Expressions VS Statements
November 13, 2019. rust Iterators
November 13, 2019. rust Shadowing a variable
November 12, 2019. git Pulling submodules again
November 11, 2019. docker Docker data directory
November 11, 2019. docker Docker network open ports
September 8, 2019. go Concurrency is not parallelism
September 8, 2019. linux Makefile VPATH
September 8, 2019. linux Merge jsons
September 8, 2019. nginx Diffie–Hellman nginx
September 8, 2019. linux Flush dns
September 8, 2019. go Convert rune to int
September 8, 2019. linux Linux dns config
September 8, 2019. go Arrays and slices
September 8, 2019. gpg Exporting gpg keys
September 8, 2019. gpg Basic gpg functions
September 8, 2019. go Byte handling
September 8, 2019. gpg Backing up gpg keys
September 8, 2019. foxdot Starting foxdot on load
September 8, 2019. firefox Disable Webrtc
September 8, 2019. go Reading strings from io
September 8, 2019. pacman List files installed by package
September 8, 2019. ansible Escape square brackets
September 8, 2019. docker Docker volumes
September 8, 2019. qemu Escape mouse capture
September 8, 2019. ctf CTF links
September 8, 2019. vim Write as sudo
September 8, 2019. go String format padding
September 8, 2019. markdown Collapse markdown
September 8, 2019. taskwarrior Recurring tasks
September 8, 2019. go Dictionaries golang
September 8, 2019. kubernetes Labels and selectors
July 17, 2019. react Managing state with React
January 1, 0001. nixos lib.getExe
January 1, 0001. devops Trusting cURL with Self Signed Certs
January 1, 0001. linux Properly use correct mkpasswd
January 1, 0001. sql SQL lite Litestream
January 1, 0001. javascript Replace regex
January 1, 0001. javascript Number constructor
January 1, 0001. nixos buildInputs vs nativeBuildInputs
January 1, 0001. vim Wrapping multiline in " (or any character)
January 1, 0001. go Check if bit is on