Bottles

Run Windows Software on Linux

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Installation

Contributing

Refer to the Contributing page.

Building

⚠️ Be sure to backup all your data before testing experimental builds of Bottles!

Use the development manifest in this repository when working on Bottles. To build a stable release locally, use the manifest maintained by Flathub.

Development Flatpak

1. Install org.flatpak.Builder from Flathub
2. Clone https://github.com/bottlesdevs/Bottles.git (or your fork)
3. Run flatpak run org.flatpak.Builder --install --install-deps-from=flathub --default-branch=master --force-clean build-dir build-aux/com.usebottles.bottles.Devel.json in the terminal from the root of the repository (use --user if necessary)
4. Run flatpak run com.usebottles.bottles.Devel to launch it

Release Flatpak

The authoritative manifest for the stable package is maintained in the Flathub repository. It defines the Bottles source, dependencies, runtime, and permissions used for each release.

1. Install org.flatpak.Builder from Flathub

2. Clone https://github.com/flathub/com.usebottles.bottles.git

3. Run the following command from the root of the cloned repository:

   flatpak run org.flatpak.Builder \
     --user \
     --install \
     --install-deps-from=flathub \
     --default-branch=local \
     --force-clean \
     build-dir \
     com.usebottles.bottles.yml

4. Run flatpak run com.usebottles.bottles//local to launch it

The local branch is installed alongside the Flathub branch. Both use the same application ID and Bottles data directory, so changes made by either build affect the other. To build an older release, use git log -- com.usebottles.bottles.src.yaml to find and check out its Flathub commit before running the build command.

Meson

Since Bottles is primarily and officially distributed as a Flatpak, we only provide instructions to directly build it inside a Flatpak environment:

1. Download and install the latest build of Bottles: bottles-x86_64.zip. Unzip it, and run flatpak install bottles.flatpak (use --user if necessary)
2. Run flatpak run -d --filesystem=$PWD --command=bash com.usebottles.bottles.Devel from the root of the repository, followed by ./build-aux/install.sh. This will build Bottles and install it under the build/ directory.
3. Run ./build/bin/bottles to launch Bottles

Due to GNOME Builder limitations, Builder cannot build Bottles for the time being; see GNOME/gnome-builder#2061 for more context. This is the best workaround we can provide.

Code of Conduct

This project follows the GNOME Code of Conduct. You are expected to follow it in all Bottles spaces, such as this repository, the project's social media, messenger chats and forums. Bigotry and harassment will not be tolerated.

Use of Generative AI

Some maintainers use generative AI tools as assistants while working in Bottles, in the spirit of Open Source, we want to be transparent about how, specifically:

• Code comments and documentation
• Boilerplate and repetitive code
• Issue triage (spotting duplicates, outdated reports, grouping similar issues)

Tools vary between contributors (currently mostly Claude and Codex): each AI-assisted commit states the tool and model used in its Assisted-by trailer.

What we don't use it for

Architecture, complex logic, the security and sandboxing model and user experience are designed and written by the maintainers, manually.

Human review

Every line of generated code, documentation and comments are reviewed by a maintainer before it is merged.

Also, starting from the 10th Sep 2026, the following commit pattern must be used for contributions made with or helped with the AI:

feat: add support for X

Assisted-by: <tool>:<model-version>
AI scope: what the AI generated in this commit, and the prompt used (or a short summary of it)

Trivial completions (single lines, renames, formatting) don't need to be marked.

Not following this layout will lead to a closed Pull Request.

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