brettinternet

# 1. Setup raspbian lite - no desktop environment or Xorg necessary. Install `fbi`.

# 2. Sync files to Pi:

rsync -ahP --delete ./slides remote-ssh-host:~

# 3. Append to ~/.profile to run on startup

if [[ $(fgconsole 2>/dev/null) == 1 ]]; then
    fbi -d /dev/fb0 -noverbose -a -t 60 -cachemem 0 $HOME/slides/*

brettinternet

#!/bin/sh

curl -sS 'https://raw.githubusercontent.com/openzfs/zfs/master/META' | awk '$1 == "Linux-Maximum:" { print $2; exit }'

brettinternet

# install go-task
---
version: "3"

vars:
  PROJECT: myproject
  SECRETS_FILE: sops.env
  COMPOSE_FILES:
    sh: find . -type f -iname "compose*.yaml" -exec basename {} ';' | sort -r
  COMPOSE_FILES_ARGS: -f {{ .COMPOSE_FILES | splitLines | join " -f " }}

brettinternet

version: "3"
name: utils

x-options: &options
  environment: &environment
    TZ: "${TIMEZONE}"
  restart: unless-stopped
  networks:
    - utils

brettinternet

The stages of ZFS grief

Disk passthrough to a VM managing my ZFS array.

$ qm set 100 -scsi1 /dev/disk/by-id/…
$ qm set 100 -scsi2 /dev/disk/by-id/…
$ …

brettinternet

defmodule MyApp.RepoConnectionReaper do
  @moduledoc """
  Disconnect all connections after a X minutes to reset cache build-up and leaky memory on long-lived connections
  Especially useful for dynamic queries which contribute to this build-up.
  
  Alternatively, use this Repo option e.g. `Repo.all(query, prepare: :unnamed)` to avoid using named prepared statements
  on queries that are dynamic enough to not cache the prepared statement on the connection.

   See also
   - https://github.com/elixir-ecto/db_connection/issues/99

brettinternet

#!/bin/bash

find /dev/disk/by-id/ -type l | xargs -I{} ls -l {} | grep -v -E '[0-9]$' | sort -k11 | cut -d' ' -f9,10,11,12

brettinternet

#!/usr/bin/python

from slack_cleaner2 import *

s = SlackCleaner('TOKEN')
channel = "CHANNEL_NAME"

for msg in s.c[channel].msgs(with_replies=True):
    if msg.user == s.myself:
        print(f"DELETED: {msg.text}")

brettinternet

// Nullable user example:

type MaybeUser = UserQuery['user']

/**
 * Possibly null user, such as on an auth page
 * Here's a description on why these overloads are required: https://stackoverflow.com/a/67640634
 */
export function useMaybeUser<UserData = MaybeUser>(
  select: (user: MaybeUser) => UserData

brettinternet

/**
 * environment variables:
 * WORKING_DIRECTORY - set to absolute path such as /tmp
 * GIT_REMOTE_{some unique number or key} - set to cloneable HTTPS repo URL such as 'https://github.com/brettinternet/homelab'
 */
import { stat } from "node:fs/promises"
import { existsSync } from "node:fs"
import { dirname, parse as pathParse, join as pathJoin } from "node:path"
import { parse as urlParse, fileURLToPath } from "node:url"
import { promisify } from "node:util"