Assessment of the iteration that has ended

The goal of the previous iteration was:

The goal of this iteration is to restart Obnam development.

The following issues were chosen for this iteration:

  • DONE: obnam#208Needs internal interface for using chunk storage
  • DONE: obnam#209Uses structopt instead of clap v3 for command line parsing

The goal was met.


The less frantic meeting schedule seems to work, for now. We can increase the frequency again once Obnam development picks up momentum, if we feel it’s needed and feasible.

Repository review

Lars reviewed all the open issues, merge requests, and CI pipelines for all the projects in the Obnam group on

Project issues MRs branches CI
obnam 50 0 0 OK 0 0 0 none
Container Images 0 0 0 OK
obnam-benchmark 11 0 0 none
cachedir 0 0 0 none
summain 0 0 0 none


Goal for 1.0 (not changed this iteration)

The goal for version 1.0 is for Obnam to be an utterly boring backup solution for Linux command line users. It should just work, be performant, secure, and well-documented.

It is not a goal for version 1.0 to have been ported to other operating systems, but if there are volunteers to do that, and to commit to supporting their port, ports will be welcome.

Other user interfaces is likely to happen only after 1.0.

The server component will support multiple clients in a way that doesn’t let them see each other’s data. It is not a goal for clients to be able to share data, even if the clients trust each other.

Goal for the next few iterations (not changed for this iteration)

The goal for next few iterations is to have Obnam be easier and safer to change, both for developers and end users. This means that developers need to be able to make breaking changes without users having to suffer. User shall be able to migrate their data, when they feel it worthwhile, not just because there is a new version.

Goal for this iteration (new for this iteration)

The goal of this iteration is to allow migration of a backup repository to a new, incompatible version of Obnam or its server.

Commitments for this iteration

Lars intends to work on the following issues:

  • obnam#46Lacks an export/import function
    • estimate: 8h

Meeting participants

  • Lars Wirzenius