Add List The Files Being Loaded By Mise as a Mise TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1605 TILs and counting..._
+_1606 TILs and counting..._
 
 See some of the other learning resources I work on:
 - [Ruby Operator Lookup](https://www.visualmode.dev/ruby-operators)
@@ -54,6 +54,7 @@ If you've learned something here, support my efforts writing daily TILs by
 * [Linux](#linux)
 * [LLM](#llm)
 * [Mac](#mac)
+* [Mise](#mise)
 * [MongoDB](#mongodb)
 * [MySQL](#mysql)
 * [Neovim](#neovim)
@@ -686,6 +687,10 @@ If you've learned something here, support my efforts writing daily TILs by
 - [View All Windows Of The Current App](mac/view-all-windows-of-the-current-app.md)
 - [Write System Clipboard To A File](mac/write-system-clipboard-to-a-file.md)
 
+### Mise
+
+- [List The Files Being Loaded By Mise](mise/list-the-files-being-loaded-by-mise.md)
+
 ### MongoDB
 
 - [Determine The Database Version](mongodb/determine-the-database-version.md)

mise/list-the-files-being-loaded-by-mise.md

@@ -0,0 +1,29 @@
+# List The Files Being Loaded By Mise
+
+While running `mise` for the first time, after adding a `mise.toml` file to a
+project, I noticed something strange. Instead of invoking the command I had
+specified (`mise run dev`), several parellel tool downloads were kicked off. In
+addition to Ruby, it was installing an older version of Postgres, and lua. What
+gives?
+
+By running `mise cfg`, I can list all the files being loaded by `mise` and get
+to the bottom of this.
+
+```bash
+mise cfg
+
+Path                         Tools
+~/.tool-versions             node, ruby, postgres, lua
+~/code/still/.ruby-version   ruby
+~/code/still/Gemfile         (none)
+~/code/still/.tool-versions  ruby
+~/code/still/mise.toml       (none)
+```
+
+I was only thinking about the files local to my project and I forgot that I
+have a system-wide `.tool-versions` file. As we can see from the output, that
+file specifies `postgres` and `lua` as well. Mise wanted to ensure that it had
+downloaded the specified versions of each of those tools before running my
+task.
+
+[source](https://mise.jdx.dev/configuration.html)