Holochain-Kangaroo Electron

Put your Holochain App in this Kangaroo's electron pouch and let it run.

This repository let's you easily convert your Holochain app into a standalone, electron-based cross-platform Desktop app.

Note: Support for non-breaking updates to happ coordinator zomes is currently not built into the kangaroo.

Holochain Version: Kangaroo Electron currently uses holochain 0.3.3.

Instructions

Setup and Testing Locally

1. Either use this repository as a template (by clicking on the green "Use this template" button) or fork it. Using it as a template allows you to start with a clean git history and the contributors of this repository won't show up as contributors to your new repository. Forking has the advantage of being able to relatively easily pull in updates from this parent repository at a later point in time. If you fork it, it may be smart to work off a different branch than the main branch in your forked repository in order to be able to keep the main branch in sync with this parent repository and selectively merge into your working branch as needed.

2. In your local copy of the repository, run

yarn setup

3. In the kangaroo.config.ts file, replace the appId and productName fields with names appropriate for your own app.

4. Paste the .webhapp file of your holochain app into the pouch folder. Note: The kangaroo expects a 1024x1024 pixel icon.png at the root level of your webhapp's UI assets.

5. To test it, run

yarn dev

Build the Distributable

Build locally

To build the app locally for your platform, run the build command for your respecive platform:

yarn build:linux

# or
yarn build:mac

# or
yarn build:windows

Build on CI for all platforms

The general workflow goes as follows:

1. Create a draft release on github and set its "Tag verion" to the value of the version field that you chose in kangaroo.config.ts and prefix it with v, for example v0.1.0.

2. Merge the main branch into the release branch and push it to github to trigger the release workflow.

If you do this for the first time you will need to create the release branch first:

git checkout -b release
git merge main
git push --set-upstream origin release

For subsequent releases after that you can run

git checkout release
git merge main
git push

Code Signing

macOS

To use code signing on macOS for your release in CI you will have to

1. Set the macOSCodeSigning field to true in kangaroo.config.ts
2. Add the following secrets to your github repository with the appropriate values:

• APPLE_DEV_IDENTITY
• APPLE_ID_EMAIL
• APPLE_ID_PASSWORD
• APPLE_TEAM_ID

Windows

If you want to code sign your app with an EV certificate, you can follow this guide to get your EV certificate hosted on Azure Key Vault and then

1. Set the windowsEVCodeSigning field to true in kangaroo.config.ts
2. Add all the necessary secrets to the repository:

• AZURE_KEY_VAULT_URI
• AZURE_CERT_NAME
• AZURE_TENANT_ID
• AZURE_CLIENT_ID
• AZURE_CLIENT_SECRET

Permissions on macOS

Access to things like camera and microphone on macOS require special permissions to be set in the .plist file. For this, uncomment the corresponding permissions in ./templates/electron-builder-template.yml as needed.