DeedleFake

A simple benchmark comparing push and pull iterators to each other and also comparing them to themselves with and without PGO.

Results

goos: linux
goarch: amd64
pkg: test
cpu: AMD Ryzen 9 3900X 12-Core Processor
        │ no-pgo.txt  │              pgo.txt               │

Audio Transcription

A simple Livebook for doing audio-to-text transcription using OpenAI's Whisper model.

This is an extremely simply identity provider module for Livebook when running Livebook behind a reverse proxy with forwarded authentication, such as when using Tailscale. For more information, see https://github.com/tailscale/tailscale/tree/main/cmd/nginx-auth and https://caddyserver.com/docs/caddyfile/directives/forward_auth#tailscale.

To use this, just stick webauth.exs in /app/user/extensions or, if using a Docker container for Livebook, stick it somewhere else and mount it into the Docker container via -v /path/to/webauth.exs:/app/user/extensions/webauth.exs:ro. Then, just set LIVEBOOK_IDENTITY_PROVIDER=custom:Webauth when running the Livebook server.

I had a very specific configuration I was trying to get working for personal usage. After a bunch of running in circles, this was the result. I figured I'd stick it somewhere public in case anyone else finds it useful.

A Quick Guide to Setting up Livebook with Support for `livebook://` URLs on Linux

Note that the following steps are intended as a rough outline. They are exact steps to replicate my setup, but your setup might differ depending on, for example, using an init system other than systemd or various other factors. Adjust as necessary.

Run docker volume create livebook-data and docker volume create livebook-config.
Place the livebook.service file in $HOME/.config/systemd/user.
Run systemctl --user enable --now livebook.service.
Place the dev.livebook.Livebook.desktop file in $HOME/.local/share/applications.
Place the dev.livebook.Livebook.svg file in $HOME/.local/share/icons/hicolor/scalable/apps.

Go/Elixir NIF Experiment

This was a quick little experiment to try to call Go code from Elixir. To try it out, simply run

$ go build -buildmode=c-shared -o nif-test.so
$ iex test.exs


	goos: linux
	goarch: amd64
	pkg: seqread
	cpu: AMD Ryzen 9 3900X 12-Core Processor
	│ simple.txt │ push.txt │ pull.txt │
	│ sec/op │ sec/op vs base │ sec/op vs base │
	Read-24 245.9n ± 1% 246.2n ± 2% ~ (p=0.725 n=10) 1137.0n ± 2% +362.29% (p=0.000 n=10)

	│ simple.txt │ push.txt │ pull.txt │

	defmodule Test do
	use GenServer

	require Logger

	def start_link([]) do
	GenServer.start_link(__MODULE__, [])
	end

	def init([]) do

	package example

	type Queue[T any] struct {
	push chan T
	pop chan T
	}

	func NewQueue[T any](ctx context.Context) {
	q := Queue{
	push: make(chan T),

	package iter_test

	import (
	"bufio"
	"io"
	"iter"
	"strings"
	"testing"
	)

DeedleFake

Results

Audio Transcription

A Quick Guide to Setting up Livebook with Support for livebook:// URLs on Linux

Go/Elixir NIF Experiment

A Quick Guide to Setting up Livebook with Support for `livebook://` URLs on Linux