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+Yesterday I got client-side access to the whole mmmfs tree to work via the new `web` datastore,
+but the requests were still extremely inefficient.
+This was because the organisation of the interface between the `Fileder` implementation and the datastore,
+which required the Fileder to make two separate requests to `?index` to fetch its children and facets,
+and also couldn't take advantage of the `?tree` pseudo-facet to bundle together multiple indexes in a single request.
+
+To fix this I added a new datastore method called `get_index` that returns both facet and child information \[[`e2a4257`][e2a4257]\]
+The Fileder implementation now uses this method instead of asking individually for the two pieces of information
+when lazy-loading fileder contents.
+The `get_index` method can also be instructed to recursively load to a fixed depth.
+A Fileder can also be instantiated using such a nested index,
+which causes it to immediately preload up to the same depth without the need for fetching more data.
+This allows some more optimizations, like having the client preload 3-levels deep when it launches,
+which seems like a decent heuristic of the data actually required for most pages and minimizes load time.
+
+I also added some tests for the `Key` class that I use in many different places to represent facet names and types \[[`782d072`][782d072]\]].
+
+The `?interactive` pseudo-facet from yesterday was changed to the `text/html+interactive` type instead \[[`8cdf5d4`][8cdf5d4]\].
+This was a bit of a tough decision, because it is a bit un-idiomatic: rendering the browser page still requires an exception in the browser.
+In the end the motivation for the change was that it should be possible,
+for user ergonomics, to link to the interactive view of a given facet of a given fileder.
+With `?interactive` being a facet, it wasn't possible to specify the facet without jumping out of the adressing system.
+With these updates on the other hand it is possible to link fo example:
+
+- to the main content of the root fileder, as an interactive view: [`/: text/html+interactive`](/:%20text/html+interactive)
+- to the page title of the root fileder, as an interactive view: [`/title: text/html+interactive`](/title:%20text/html+interactive)
+
+[e2a4257]: https://git.s-ol.nu/mmm/commit/e2a4257fc05d37822df2b7bbe0f587645375edf2/
+[782d072]: https://git.s-ol.nu/mmm/commit/782d0725f3f29eaa7d4a12213fb00c6643795348/
+[8cdf5d4]: https://git.s-ol.nu/mmm/commit/8cdf5d4a363ba99a6356e7e1dfe0dfb39e6fb13e/