Move migrations directories to sort first, needs PATCHED diesel-cli

_docs/local_development_setup.md

@@ -27,8 +27,18 @@ Diesel is an ORM, which is dumb, so we use sqlx as at-compile-time typesafe SQL.
 
 ```
 sudo apt-get install libmysqlclient-dev
-cargo install sqlx-cli --no-default-features --features mysql
-cargo install diesel_cli --no-default-features --features mysql
+cargo install sqlx-cli --no-default-features --features mysql [2022-01-16: is this needed?]
+```
+
+To install a more modern version of Diesel (unreleased) that 
+supports the "migrations_dir" toml config option:
+
+```
+cargo install diesel_cli \
+  --git https://github.com/diesel-rs/diesel.git \
+  --rev a213fe232a122f35a812b0ce0269708a1845a4c9 \
+  --no-default-features \
+  --features mysql
 ```
 
 #### Linux database notes

crates/service/obs_gateway/src/endpoints_ws/obs_gateway_websocket_handler.rs

@@ -115,7 +115,6 @@ struct ObsGatewayWebSocket {
   twitch_thread: Arc<ObsTwitchThread>,
 }
 
-
 impl ObsGatewayWebSocket {
   fn new(
     twitch_user_id: u32,

diesel.toml

@@ -3,3 +3,11 @@
 
 [print_schema]
 file = "_ignored_schema.rs"
+
+# I want to sort this directory first for easier reference
+# Not released yet, but added here:
+# https://github.com/diesel-rs/diesel/pull/2179
+# You'll need to install the a non-released diesel CLI
+# (See storyteller READMEs/docs on how to install)
+[migrations_directory]
+dir = "_migrations"