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1# Digital Bitbox {#module-programs-digitalbitbox}
2
3Digital Bitbox is a hardware wallet and second-factor authenticator.
4
5The `digitalbitbox` programs module may be installed by setting
6`programs.digitalbitbox` to `true` in a manner similar to
7```nix
8{
9 programs.digitalbitbox.enable = true;
10}
11```
12and bundles the `digitalbitbox` package (see [](#sec-digitalbitbox-package)),
13which contains the `dbb-app` and `dbb-cli` binaries, along with the hardware
14module (see [](#sec-digitalbitbox-hardware-module)) which sets up the necessary
15udev rules to access the device.
16
17Enabling the digitalbitbox module is pretty much the easiest way to get a
18Digital Bitbox device working on your system.
19
20For more information, see <https://digitalbitbox.com/start_linux>.
21
22## Package {#sec-digitalbitbox-package}
23
24The binaries, `dbb-app` (a GUI tool) and `dbb-cli` (a CLI tool), are available
25through the `digitalbitbox` package which could be installed as follows:
26```nix
27{
28 environment.systemPackages = [
29 pkgs.digitalbitbox
30 ];
31}
32```
33
34## Hardware {#sec-digitalbitbox-hardware-module}
35
36The digitalbitbox hardware package enables the udev rules for Digital Bitbox
37devices and may be installed as follows:
38```nix
39{
40 hardware.digitalbitbox.enable = true;
41}
42```
43
44In order to alter the udev rules, one may provide different values for the
45`udevRule51` and `udevRule52` attributes by means of overriding as follows:
46```nix
47{
48 programs.digitalbitbox = {
49 enable = true;
50 package = pkgs.digitalbitbox.override {
51 udevRule51 = "something else";
52 };
53 };
54}
55```