It's only at release 0.1 so I'd let them bake a little longer!

Looks awesome so far, though!

The license is different. Redis core is BSD 3 clause, which is a permissive open source license. Dragonflydb uses the Business Source License, with some additional use grants. Depending on your situation, that could be an impediment.

A lot less features. If you don't care about the missing features, then it might be a completely reasonable replacement.

I've been working on DF for the last 6 months and I implemented ~130 commands. It's still missing about 40% of the commands to reach parity with v5/v6.

I will continue working on DF. Primary/Secondary replication is my next milestone.

How apples to apples is the performance comparison given these missing commands?

Those commands wont affect the design of the df, hence they wont affect the performance. Its just work that needs to be done.

I can see it's missing some important commands like WATCH, and maybe the WAL for high durability contexts.

If you see that important command are missing, pks open an issue and we will prioritize their implementation.