Rob Elshire
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Slack to Mattermost

Migration from Slack to Mattermost removes the last piece of proprietary software from a small charitable society's software stack.

GFANZ has been using the messaging tool Slack for some years. It has been an effective way to get organisational communications out of email boxes. One downside is that Slack is proprietary software running on corporate servers in the cloud. Slack was the last piece of proprietary software in our organisation's software stack.

I have been wanting to shift to Mattermost for some time and last week, I tackled the job. I was able to migrate all of our users, channels, and public messages to a new Mattermost instance. I could not migrate private messages and DMs due to the type of slack account we had.

The heavy lifting was done with mmctl from the bash shell.

From the user's point of view, the experience is similar to using Slack. There are a variety of ways one can deploy Mattermost. I used the app on TrueNAS. Another inexpensive option is to use something like Railway.com

Home - Genomics for Aotearoa New Zealand
Genomics for Aotearoa New Zealand Genomics for Aotearoa New Zealand is an incorporated society and registered charity focused on the benefits of genomics for everyone. We are an inclusive and diverse organization dedicated to advancing genomics knowledge and applications while ensuring that the benefits and resources are accessible to all members of society. We aim…
genomics.nz
Mattermost | Collaboration Platform for Mission Critical Work
Accelerate your mission critical workflow by integrating people, processes, tools and AI infrastructure on a resilient and adaptable platform.
mattermost.com
Migrate from Slack - Mattermost documentation
Mattermost provides a reliable migration path from Slack, enabling you to bring your organization’s collaboration history into a secure, self-hosted Mattermost environment. The migration process supports full workspaces, including users, channels and message history, direct messages, and threads so your teams can continue working without losing valuable context.
docs.mattermost.com
mmctl command line tool - Mattermost documentation
The mmctl is a CLI tool for the Mattermost server which is installed locally and uses the Mattermost API, but may also be used remotely. Authentication is done with either login credentials or an authentication token. This mmctl tool is included and replaces the CLI. The mmctl can currently be used alongside the Mattermost CLI tool. The Mattermost CLI tool will be deprecated in a future release.
docs.mattermost.com
Railway
Railway is the deployment platform that lets you run applications without being burdened by infrastructure. Ship 10x faster while staying in flow.
railway.com
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