His Discord server: https://discord.com/invite/RjZWuyd

---

You can go direct, use docker or try with PPA.  Docer version of the install is said to be easier.   However for production installs the tarball method is better.   

• GAI: install via apt (PPA). what is ppa?  A Personal Package Archive (PPA) is a user-maintained, unofficial software repository hosted on Launchpad, allowing Ubuntu users to install or update software not available in official repositories. Installed via apt, PPAs provide newer versions or niche applications but lack the security vetting of official sources. 
• GAI:is a mattermost server easier to install using docker?

---

?Open Source?

• Mattermost has the same disease as the rest of these.  Rent seekers move it off of true open source to pay model.   Mattermost Team Edition is the so called "open source" version of Mattermost.  
• GAI: is mattermost open source with the source code available on github?  github.com/mattermost/mattermost-server
• GAI: how limited is the mattermost team edition software – older messages are not searchable. 

Mattermost Team Edition (open source) is a self-hosted, MIT-licensed platform designed for small to medium teams, allowing up to 250 users. While it allows for high, sometimes unlimited user counts in practice, it is largely limited by a 10,000-message search/visibility cap (as of recent changes), restricting historical access to conversations. 

Key Limitations of Team Edition:

• Message/Search History: Restricted to 10,000 total messages. Older messages are inaccessible in search or navigation.
• User Limit: Intended for smaller teams, often cited around 250 activated users.
• Feature Gaps: Lacks advanced Enterprise features like SAML/SSO authentication, advanced compliance, granular permissions, and high-availability clustering.
• Board Cards: Limited to 1,000 boards cards.
• Support: No direct commercial support, relying on community forums. 

Installation Set 1:

• YT: You Don’t Need Slack Anymore | Install Mattermost on Linux in 15 Minutes – goes thru the PPA method.  
• Perp: List and explain the steps to install mattermost server on a local host ubuntu server from scratch
• Perp: List and explain the steps to install mattermost server using docker on a local host ubuntu server from scratch.
• Perp: List and explain the steps to install mattermost server on a local host ubuntu server using the ppa.

Installation Set 2: 

• MM: Install Mattermost  – variety of platforms / methods

Choose which technology base and installation method best supports your organization’s orchestration needs. All methods install Mattermost Entry — a free limited-use edition of Enterprise Advanced for technical evaluation, with the option to upload a license to unlock full access.

• Deploy Mattermost on Linux – PPA method

Alternatives:

• GAI: What software is truly open source with no limits similar to slack and mattermost? 

QuAmVsuyrOc5