Update README

- Add intro
- Add setup instructions
- Remove obsolete dev notes
- Remove db queries (they're in the repo's livebook)

README.md

@@ -1,48 +1,30 @@
 # Music Library
 
+Music Library is an application to manage a collection of music records in different physical formats.
+
+## Features
+
+- Import records from MusicBrainz, with optional override of specific pieces of data
+- Manage a collection and a wishlist of records, with ways to quickly search and filter based on records' metadata
+- Integration with Last.fm (display latest scrobbles, and where possible connect them with records in the collection or wishlist)
+- Some basic stats
+- All data stored in a single SQLite database for portability and ease of backup/restore
+- Ideal for deployment on a server with limited resources (1CPU, 512MB RAM)
+
+## Setup
+
 To start your Phoenix server:
 
 - Run `mix setup` to install and setup dependencies
+- Setup necessary environment variables:
+  - `LAST_FM_USER`: the Last.fm username used to populate the Scrobble Activity
+  - `LAST_FM_API_KEY`: the Last.fm API key used to fetch the Scrobble Activity
+  If using `direnv`, one can create a `.envrc.local` file for configuration variables, and a `.secrets` file for secrets. Both are automatically sourced via the `.envrc` file in the repo.
 - Start Phoenix endpoint with `mix phx.server` or inside IEx with `iex -S mix phx.server`
 
-Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
+Now you can visit [`localhost:4000`](http://localhost:4000) from your browser. The default password for development is `change me`.
 
-Ready to run in production? Please [check our deployment guides](https://hexdocs.pm/phoenix/deployment.html).
-
-## Learn more
-
-- Official website: <https://www.phoenixframework.org/>
-- Guides: <https://hexdocs.pm/phoenix/overview.html>
-- Docs: <https://hexdocs.pm/phoenix>
-- Forum: <https://elixirforum.com/c/phoenix-forum>
-- Source: <https://github.com/phoenixframework/phoenix>
-
-## Dev Notes
-
-### Search
-
-- SQLite supports full-text search via the built-in FTS5 extension, which is enabled by default and loaded in the Elixir Driver.
-  The extension requires building a virtual table that holds the data to be searched. This seems to be akin to a materialized view.
-- To have fuzzy search, another extension needs to be loaded.
-  [Exqlite](https://github.com/elixir-sqlite/exqlite?tab=readme-ov-file) recommends using [ExSqlean](https://github.com/mindreframer/ex_sqlean),
-  which in turn uses [Sqlean](https://github.com/mindreframer/sqlean), but the extension is NOT part of the ExSQlean set.
-  Need to investigate with forking and PR.
-
-### Queries
-
-- To get the count of records per genre:
-
-  ```
-  select genre.value, count(genre.value) as c from records, json_each(records.genres) genre group by genre.value order by c desc;
-  ```
-
-- To get the count of records per artist:
-
-  ```
-  select json_extract(artist.value, '$.name') AS name, count(1) as c from records, json_each(records.artists) artist group by name order by c desc;
-  ```
-
-  Note that this query would fail to disambiguate artists with the same name - can be fixed by using the artist `musicbrainz_id`.
+The application is setup for deployment on Fly.io.
 
 ### CI