• Socat - Create a listening service that forwards to a service inside a network namespace (socat is amazing): /usr/bin/socat UNIX-LISTEN:/run/transmission.sock,fork exec:'ip netns exec NETNS socat STDIO tcp-connect\:127.0.0.1\:8080',nofork
  • HTTP Client -> [Unix Socket Server] ---- | Network Namespace Barrier | ----> HTTP Server (localhost listening)
• strace -p PID - Look at calls between the process and the kernel
• gdb, python-dbg - Look at stack traces live
• TIL: https://news.ycombinator.com/item?id=17083879 "My registrar suspended my domain because an abusive user was using a subdomain for phishing"
• Make Vim respect XDG - https://tlvince.com/vim-respect-xdg
• Write scripts, just flipping write them! https://www.youtube.com/watch?v=Jd8ulMb6_ls "Solve Your Problem with Sloppy Python" @Larry Hastings
• A product manager can buy software from their team, but they can also buy information like, "Is X possible?" or "How many points to build Y?" or "How much support would be reduced if we did Z?".
• Fira code for this ligatures: https://medium.com/@docodemore/an-alternative-to-operator-mono-font-6e5d040e1c7e
• http://learnyouanagda.liamoc.net/pages/introduction.html
• camelCase, PascalCase, snake_case, kebab-case, CAPS_CASE.

• Sudoers:pccuser ALL=(ALL:ALL) NOPASSWD:/path/to/command ""
  pcuser = user or %group we are giving permission to
  ALL= is the host (ALL works unless you are sharing file across hosts)
  (ALL:ALL) is (user-we-can-command-as:group-we-can-command-as), i.e. sudo -u user -g group. If omitted only root. Can use just (ALL)
  NOPASSWD: is tags
  command may be "ALL".
  "" prevents command parameters (do not use when specifying parameters)

  -> User Host = (Runas) Command

  • Example (placed after NO-NOPASSWD): %wheel ALL=(root) NOPASSWD:/usr/bin/pacmatic -Syu

Python Ecosystem

• stdlib 3.7 dataclasses (https://www.youtube.com/watch?v=T-TwcmT6Rcw "Dataclasses" @Raymond Hettinger)
  • previously and still alternatively: attrs lib (has validators, converters and a few other features)
• pipenv (https://www.youtube.com/watch?v=GBQAKldqgZs "Pipenv" @Kenneth Reitz)
• pytest
• typing: (mypy or pyre, MonkeyType) (https://www.youtube.com/watch?v=pMgmKJyWKn8 "Real World" @Carl Meyer)
• Instagram 2018 1.5mil lines of Python
• linting complete: https://jeffknupp.com/blog/2016/12/09/how-python-linters-will-save-your-large-python-project/
  • Create based on project Daedalus.
• https://awesome-python.com/

https://github.com/ambv/black - pycodestyle auto

JavaScript Ecosystem

• https://prettier.io/ (there was another opinionated one?)
  • https://standardjs.com/

How to apologise(!). Source

• An expression of regret, i.e. "I'm sorry"
• An explanation (but not a justification)
• An acknowledgement of responsibility (most important)
• A declaration of repentance
• An offer of repair
• A request for forgiveness (least importance)

Don't say: "IF", "I regret", Don't use passive voice. Say how you're going to make sure this doesn't happen again.