Installation

Installation guidelines

Requirements: Android 7.0 (Nougat) or later.

To install the app, follow these steps:

Open the NAHPU listing on Google Play.
Tap Install and wait for the download to finish.
Once installed, you can find the app in your app drawer or home screen.

Requirements: an x86_64 distribution with GLIBC 2.35 or later. Ubuntu 22.04, Debian 12, Fedora 36, and RHEL or Rocky Linux 9 and later all meet this.

Download the package.

curl -LO https://github.com/nahpu/nahpu/releases/latest/download/nahpu-Linux-x86_64.deb

Install it. apt pulls in the libraries NAHPU needs, including ffmpeg and pulseaudio-utils for audio recording.
Terminal window
```
sudo apt install ./nahpu-Linux-x86_64.deb
```
Open NAHPU from your application menu, or run nahpu in a terminal.

These steps cover Fedora, RHEL, Rocky Linux, AlmaLinux, and other RHEL rebuilds.

NAHPU signs its RPM packages. Import the signing key once, before your first install:

sudo rpm --import https://nahpu.app/nahpu.asc

The key fingerprint is 6D60 D3B0 D903 58AC 418A 886E 4A7A 5114 7237 7563, also published at nahpu.app/nahpu-fingerprint.txt.

Download the package.

curl -LO https://github.com/nahpu/nahpu/releases/latest/download/nahpu-Linux-x86_64.rpm

Check the signature. The output ends with digests signatures OK when the package is intact.
Terminal window
```
rpm -K nahpu-Linux-x86_64.rpm
```

Install it.

sudo dnf install ./nahpu-Linux-x86_64.rpm

Open NAHPU from your application menu, or run nahpu in a terminal.

Audio recording needs ffmpeg, which Fedora packages as ffmpeg-free. dnf installs it along with pulseaudio-utils when they are available; if recording does not work, install them yourself with sudo dnf install ffmpeg-free pulseaudio-utils.

Use the portable archive on distributions without .deb or .rpm packages, such as Arch Linux, openSUSE, and NixOS, or when you cannot install system packages.

Download the archive.

curl -LO https://github.com/nahpu/nahpu/releases/latest/download/nahpu-Linux-x86_64.tar.gz

Extract it into a folder on your computer.
Terminal window
```
tar -xzf nahpu-Linux-x86_64.tar.gz
```
Install the runtime dependencies. The archive carries no dependency information, so your package manager cannot do this for you. NAHPU needs the GTK 3 runtime, which most desktops already provide, plus ffmpeg and the PulseAudio command-line utilities for audio recording.
Terminal window
```
# Arch Linux
sudo pacman -S --needed gtk3 ffmpeg libpulse

# openSUSE, where ffmpeg comes from the Packman repository
sudo zypper install libgtk-3-0 pulseaudio-utils ffmpeg
```
On NixOS the archive needs an FHS environment, for example nix-shell -p steam-run --run "steam-run ./nahpu".
Run the nahpu executable inside the extracted folder.

If NAHPU does not start, ask the loader what is missing. Run this from inside the extracted folder:

ldd nahpu | grep "not found"

Each line names a library NAHPU cannot load. Install the package your distribution ships it in, then try again. The command prints nothing when every dependency is satisfied.