Engineering Handbook

Significant Product Changes

We aim to engage with the community for feedback whenever significant product changes are being proposed for Meltano, the SDK, and the Hub. The most common way we do this is via Office Hours and Demo Day. Internal team members as well as external contributors should plan to present at office hours and/or demo day to collect feedback from the broader community.

If it is not possible to present at office hours or demo day, it may be possible for a knowledgeable team member or community member to present on your behalf. Alternatively, you may also post a recorded video demo and walkthrough, of length between 2 and 10 minutes, to the #contributing channel on slack, posting a link also on your MR. You may use Slack’s built-in video message feature, the free tool Loom, or another similar tool.

Research Spikes

Some issues may be large in scope and need further refinement. This is done in collaboration with Product. For larger issues, it may be necessary to do a research spike to better understand the technical challenges in the proposed solution.

If something needs a research spike, the Needs Research Spike label will be used. The spike can either be tracked in the main issue in the comments, or as part of a separate issue created just for the spike.

When you do a spike, be clear on how much time you are spending. Anything less than a few hours you are ok to prioritize when you’re ready. If the spike is longer than half a day, coordinate with your manager and Product on the best time to prioritize.

Outages & escalation is automatically monitored using Pingdom, with notifications of downtime posted to:

  • Zendesk, through our hello@ email address, and
  • Douwe, by email and SMS.

When any instance managed by us is reported to be down, through Pingdom or any other means, resolving this becomes the team’s top priority.


Engineering has a regular all-hands meeting to align on overall priorities, discuss areas for improvement, share lightning talks, and socialize. Product is invited to the meeting but is not expected to always be in attendance.

GitHub Mirrors

We mirror the three main Meltano repositories (meltano/sdk/hub) from GitLab to GitHub. This is managed via the “Mirroring repositories” section with the Settings of the GitLab repository. The push was created using Taylor’s personal GitHub account (tayloramurphy) with a personal access token made just for the use case. This was tracked in this issue.

Domain names, DNS, and hosting

Domain names are typically registered with Amazon Web Services. NameCheap can be used if a TLD is not available there. For legacy reasons, one domain name is still registered with Gandi.

DNS is typically managed at SiteGround. DNS for * is managed at DigitalOcean. DNS for is managed at NameCheap. is hosted at SiteGround. is hosted using GitLab Pages for is hosted at Read the Docs.