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InstanceBrick--nightcap/README.md
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Haumea 272f61688b Add a FAQ.md (#72)
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Frequently Asked Questions file so people can easily see well... the most Frequently Asked Questions

* Update README.md

Added a FAQ section to give the link to the file FAQ.md

* Update README.md

Idk but the link to FAQ.md so I kind of fixed it but idk is the same

* Update FAQ.md

Forgot to add the link to the only question

* Update FAQ.md

I think I fixed the link

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I think I finally fixed the link after some tries LOL

* Update FAQ.md

Forgot english does not use ¿ lol

* Update FAQ.md

Im not going to even explain this
2026-08-26 11:04:13 +03:00

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# Mocktail
[![CI](https://github.com/komaruworld/mocktail/actions/workflows/ci.yml/badge.svg)](https://github.com/komaruworld/mocktail/actions/workflows/ci.yml)
[![Stars](https://img.shields.io/github/stars/komaruworld/mocktail?style=flat&logo=github)](https://github.com/komaruworld/mocktail/stargazers)
[![Downloads](https://img.shields.io/github/downloads/komaruworld/mocktail/total?logo=github)](https://github.com/komaruworld/mocktail/releases/latest)
[![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](LICENSE)
Mocktail runs the Android `x86_64` Roblox client on Linux, including a Linux
userspace hosted by FreeBSD's Linuxulator. It provides the Android ABI and JNI
pieces the client expects, then connects them to SDL3 and Vulkan or OpenGL on
the Linux side.
Mocktail is an independent community project. It is not affiliated with Roblox
Corporation or VinegarHQ and does not distribute the Roblox client.
## How it works
```
Roblox APK -> signature and ABI checks -> Bionic + JNI -> SDL3 + Vulkan/OpenGL
```
The APK is checked before any native code is loaded. It is downloaded on first
launch and is not bundled with Mocktail. The last working copy is kept in case
an update fails.
## Install with Flatpak
Install the stable release from Flathub:
```bash
flatpak install flathub space.bigrat.mocktail
flatpak run space.bigrat.mocktail
```
Nightly builds are produced automatically from the latest `main` branch:
```bash
flatpak install --user https://mocktail.bigrat.space/mocktail.flatpakref
flatpak run space.bigrat.mocktail
```
## Install from the AUR
Arch Linux users can install either the pinned source release (`mocktail`) or
the current development version (`mocktail-git`) with an AUR helper:
```bash
paru -S mocktail-git
# or
yay -S mocktail-git
```
Use `mocktail` instead of `mocktail-git` to build the pinned release from
source, or install the stable prebuilt package with `paru -S mocktail-bin` or
`yay -S mocktail-bin`.
## Install with DNF
Fedora 44 users can install either the stable `mocktail` package or the
`mocktail-nightly` package built from `main`:
```bash
sudo curl -fsSL https://mocktail.bigrat.space/rpm/mocktail.repo \
-o /etc/yum.repos.d/mocktail.repo
sudo dnf install mocktail
# or
sudo dnf install mocktail-nightly
```
## Install with APT
Ubuntu 26.04 users can install either the stable `mocktail` package or the
`mocktail-nightly` package built from `main`:
```bash
sudo install -d -m 0755 /etc/apt/keyrings
sudo curl -fsSL https://mocktail.bigrat.space/mocktail-packages.gpg \
-o /etc/apt/keyrings/mocktail.gpg
echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/mocktail.gpg] https://mocktail.bigrat.space/apt mocktail main" | \
sudo tee /etc/apt/sources.list.d/mocktail.list >/dev/null
sudo apt update
sudo apt install mocktail
# or
sudo apt install mocktail-nightly
```
## Direct downloads
Direct AppImage, DEB, and RPM downloads are available from the
[Website](https://mocktail.bigrat.space/) and
[GitHub Releases](https://github.com/komaruworld/mocktail/releases).
<details>
<summary>Screenshots</summary>
![Roblox home in Mocktail](assets/screenshots/flatpak-home.png)
![Roblox gameplay in Mocktail](assets/screenshots/flatpak-gameplay-tower.png)
![Roblox experience in Mocktail](assets/screenshots/flatpak-gameplay-lobby.png)
</details>
## FFlag overrides
Put a JSON object in `$XDG_CONFIG_HOME/mocktail/fflags.json` (usually
`~/.config/mocktail/fflags.json`). Mocktail applies it on the next launch.
```json
{
"FFlagExample": "True",
"DFIntExample": "120"
}
```
## FAQ
To see the most Frequently Asked Question go check [FAQ.md](FAQ.md)
## Building
Linux `x86_64` is supported. Experimental FreeBSD 15.1 Linuxulator support has
been tested with an `x86_64` Fedora 44 userspace. On FreeBSD, Mocktail runs
inside Linuxulator; it is not a native FreeBSD binary. Building requires CMake
3.20+, Git, pkg-config, LLD, binutils, a C++17 compiler, SDL 3.4+, SDL3_ttf,
Vulkan, EGL, libplacebo, fontconfig, libcurl, OpenSSL, libelf, libyaml, minizip,
Capstone 5, utf8proc, nlohmann/json, GTK4, libadwaita 1.6+, and WebKitGTK 6.0.
See the [FreeBSD Guide](packaging/freebsd/README.md) for setup and launch instructions.
<details>
<summary>Ubuntu 26.04+</summary>
```bash
sudo apt update
sudo apt install build-essential cmake git ninja-build pkg-config lld \
libsdl3-dev libsdl3-ttf-dev libcurl4-openssl-dev libssl-dev \
nlohmann-json3-dev libyaml-dev libelf-dev libminizip-dev \
libcapstone-dev libgtk-4-dev libadwaita-1-dev libwebkitgtk-6.0-dev \
libutf8proc-dev libfontconfig1-dev libegl-dev libvulkan-dev \
libplacebo-dev zlib1g-dev
```
</details>
<details>
<summary>Arch Linux</summary>
```bash
sudo pacman -S --needed base-devel cmake git ninja pkgconf lld sdl3 sdl3_ttf \
curl openssl nlohmann-json libyaml libelf minizip capstone gtk4 \
libadwaita webkitgtk-6.0 libutf8proc fontconfig libglvnd \
libplacebo vulkan-headers vulkan-icd-loader zlib
```
</details>
<details>
<summary>Fedora 44+</summary>
```bash
sudo dnf install gcc-c++ cmake git ninja-build pkgconf-pkg-config lld \
SDL3-devel SDL3_ttf-devel libcurl-devel openssl-devel \
nlohmann-json-devel libyaml-devel elfutils-libelf-devel minizip-ng-compat-devel \
capstone-devel gtk4-devel libadwaita-devel webkitgtk6.0-devel \
utf8proc-devel fontconfig-devel libglvnd-devel vulkan-headers \
vulkan-loader-devel libplacebo-devel zlib-ng-compat-devel
```
</details>
```bash
git clone --recurse-submodules https://github.com/komaruworld/mocktail.git
cd mocktail
make build
./build/mocktail
```
## Known limitations
Mocktail does not currently work with `hardened_malloc`. Using
`hardened_malloc` may cause Mocktail to fail to start or crash during runtime.
Run Mocktail without `hardened_malloc` enabled.
## License
[Apache License 2.0](LICENSE). Third-party components keep their own licenses.
## Support
You can support the project by giving it a star or with cryptocurrency:
- USDT (TON): `UQCi6Yzcc9cOctoij6n_r1K90-OdVxAT0D_xo2UzGKkQaJDY`
- USDT (TRC20): `TNPMG9Vig2xiuo2r1QqnXRChPH7Vu28Jmx`