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+[[!meta title="Iteration planning: March 28—April 11"]]
+[[!tag meeting]]
+
+# Agenda
+
+* Assess previous iteration.
+* Discuss goals for new iteration, next few iterations, and long term.
+* Review all open issues, and update them as needed.
+* Create new milestone and choose issues to resolve.
+
+# Assessment of the iteration that has ended
+
+[iteration that has just ended]: /blog/2021/02/28/planning
+
+The goal for the [iteration that has just ended][] was:
+
+> By the end of this iteration, Obnam will have a plan for how to
+> implement encryption for the initial threat model of the server
+> operator reading backed up data. This will cover the encryption
+> algorithm, how the encryption secret is handled, and Obnam can
+> change its encryption in the future.
+> 
+> A new release will be made by the end of the iteration.
+
+That goal was reached, if rather late.
+
+# Discussion
+
+Due to unforeseen circumstances (CI broke down badly), it took over a
+week to actually finish making the release and building Debian
+packages. That should now be properly fixed and shouldn't happen
+again. Obnam uses Lars's personal CI, which is opaque and strange, but
+is what Lars trusts to publish stuff on his personal sites. For
+more transparent development it may be good to later set up something
+that is more publicly accessible, perhaps using GitLab CI, but that
+will need to wait for volunteers.
+
+During this iteration Lars did some performance profiling, because
+Obnam is rather slower than he's willing to accept. Lars has some
+multi-gigabyte files that change about every 30 seconds: notmuch index
+files.
+
+The current main cause of slowness is that the client is
+single-threaded and spends most of its time computing SHA256 checksums
+of live data. Computing the checksums is necessary for de-duplication,
+and they can't be skipped, but it would be good for the client to make
+use of all the CPU cores available. That was always the intention, but
+it would be good to start moving in that direction sooner rather than
+later. Lars's current plan is to make use of the Rust async features
+for this.
+
+# Goals
+
+## 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 support encryption
+well. This will involve having a documented threat model, which has
+been reviewed by all stakeholders participating in the project, and
+Obnam defending against all the modeled threats.
+
+## Goal for the iteration that is starting
+
+The goal for this iteration is to implement a reasonable `obnam init`,
+which reads a passphrase from the user, and derives two keys from it,
+and stores them into `~/.config/obnam/secrets.yaml`, with file-system
+permissions of 0400 (or `-r------` in ls notation). It is not part of
+the goal to actually use those keys in any way.
+
+# Commitments for this iteration
+
+[[!milestone 7]] represents this iteration on GitLab.
+
+For this iteration, Lars is committed to resolving the following
+issues:
+[[!issue FIXME]] (FIXME estimate).
+
+That is a total of about FIXME hours, rough estimate.
+
+# Meeting participants
+
+* Lars Wirzenius