AHUBU Helps Users Be Utilitarian
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AHUBU (ahungry-browser)


AHUBU Helps Users Be Utilitarian

A doctrine that the useful is the good and that the determining consideration of right conduct should be the usefulness of its consequences; specifically : a theory that the aim of action should be the largest possible balance of pleasure over pain or the greatest happiness of the greatest number .

As such, the browser aims to allow this power to shift to what the user needs and desires (via customization / extensions not just as sandboxed javascript, but native code that can hook into everything from DOM events, network requests/content, and arbitrary event listeners, both in and out of the DOM).

Table of Contents

What is it?

A very customizable browser - initial keybindings are a mesh between Emacs and VIM, as I use Emacs with Evil bindings and that's my preference.

The closest browsers in default keybindings would be compared to Firefox or Chrom(e|ium) with vimium/vimperator etc., or one of the niche webkit browsers such as Lisp Kit or Vimprobable2.


Most the good built in keybind browsers (vimprobable2) have outdated web engines with little maintenance, and the new module system on Firefox 55+ has weak support for the level of sophistication we need in handling these key bindings.


If you want to run from lein to play with the source and interactive REPL, ensure you have lein installed (https://leiningen.org/) as well as a JDK that supports JavaFX (openjdk-8-jdk and openjfx will work on most distros - later versions of openjdk beyond 9 do not allow side installs of openjfx, nor do most distros ship with it pre-compiled in).

On Arch Linux, just installing latest openjdk + openjfx worked out of the box. On Ubuntu 18.04, special care must be taken to use the Java version 8 instead of the 11 preview.

Java Dependencies

Arch Linux

Just install openjdk and openjfx

Ubuntu 18.04

Install this:

sudo apt install openjdk-8-jdk openjfx
sudo update-alternatives --config java # Select java 8

Run the following (until I am distributing the uberjar to run a standalone):

lein deps
lein run -m ahubu.core

(this will of course require leiningen to be installed)


See: Docs for user guide.

When it exists, you would run that command below.

$ java -jar ahubu-0.1.0-standalone.jar [args]


Custom keybinds/behavior

Ahubu looks for configuration in $HOME/.ahuburc and $XDG_CONFIG_HOME/ahubu/ahuburc, which overrides the defaults. To get started customizing, copy the default from conf/default-rc in this project to either of those locations and modify accordingly.

You can bind any of the following to your key presses:

  • A valid Clojure function call (or expression, such as a Clojure lambda)
  • A string literal (this will run as javascript in the browser)
  • A keyword bind can be a keyword letter, OR a string (useful for CTRL + key binds)

At the moment, rebinding :keymaps will require you to fully spec out your custom keymaps, so make sure to start with a full config and customize as needed.

;; -*- mode: clojure -*-

 ;; These shadow into the keybinds with a more concise syntax.
  :d "http://ddg.gg"

 ;; These tie to the various modes.
   :z "my_custom_js_call()"
   :y ahubu.lib/any-builtin-function
   :x #(println "Hello)

Network Filtering

Look in conf/url-ignore-regexes.txt for now - any URL patterns you add here (newline separated) will be stopped from downloading at the browser's network request level (aka, your browser will never even attempt to download those requests - effectively blackholing garbage you don't care about receiving).


Coming soon


Copyright © 2018 Matthew Carter m@ahungry.com

Distributed under the GNU General Public License either version 3.0 or (at your option) any later version.