Merge 15337dfd71 into baab5738e7

See [here](https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/) for more explanations:
> We are monitoring telemetry for the usage of these commands and plan to fully disable them on 31st May 2023. Starting 1st June 2023 workflows using save-state or set-output commands via stdout will fail with an error.

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).
 
-_1439 TILs and counting..._
+_1441 TILs and counting..._
 
 ---
 
@@ -897,6 +897,7 @@ _1439 TILs and counting..._
 - [Find Or Create A Record With FactoryBot](rails/find-or-create-a-record-with-factory-bot.md)
 - [Find Records With Multiple Associated Records](rails/find-records-with-multiple-associated-records.md)
 - [Force All Users To Sign Out](rails/force-all-users-to-sign-out.md)
+- [Generate A Rails App From The Main Branch](rails/generate-a-rails-app-from-the-main-branch.md)
 - [Generating And Executing SQL](rails/generating-and-executing-sql.md)
 - [Get A Quick Approximate Count Of A Large Table](rails/get-a-quick-approximate-count-of-a-large-table.md)
 - [Get ActiveRecord Attribute Directly From Database](rails/get-active-record-attribute-directly-from-database.md)
@@ -1355,6 +1356,7 @@ _1439 TILs and counting..._
 - [Command Line Length Limitations](unix/command-line-length-limitations.md)
 - [Compare Two Variables In A Bash Script](unix/compare-two-variables-in-a-bash-script.md)
 - [Configure cd To Behave Like pushd In Zsh](unix/configure-cd-to-behave-like-pushd-in-zsh.md)
+- [Convert SVG To Favicon](unix/convert-svg-to-favicon.md)
 - [Copying File Contents To System Paste Buffer](unix/copying-file-contents-to-system-paste-buffer.md)
 - [Copying Nested Directories With Ditto](unix/copying-nested-directories-with-ditto.md)
 - [Count The Lines In A CSV Where A Column Is Empty](unix/count-the-lines-in-a-csv-where-a-column-is-empty.md)

github-actions/capture-an-output-value-for-use-in-a-later-step.md

@@ -23,11 +23,11 @@ version from my `.tool-versions` file with a step that uses `set-output`.
   - name: Read Node.js version to install from `.tool-versions`
     id: nodejs
     run: >-
-      echo "::set-output name=NODE_VERSION::$(
+      echo "NODE_VERSION=$(
         cat .tool-versions |
         grep nodejs |
         sed 's/nodejs \(.*\)$/\1/'
-      )"
+      )" >> $GITHUB_OUTPUT
 ```
 
 `echo` runs the command in the string which sets `NODE_VERSION` as an output
@@ -45,4 +45,4 @@ This output value can be referenced in a later step.
 `steps` has a reference to the `nodejs` step (note the `id` above) which then
 has `outputs` like the `NODE_VERSION`.
 
-[source](https://docs.github.com/en/actions/reference/workflow-commands-for-github-actions#using-workflow-commands-to-access-toolkit-functions)
+[source](https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-output-parameter)

rails/generate-a-rails-app-from-the-main-branch.md

@@ -0,0 +1,27 @@
+# Generate A Rails App From The Main Branch
+
+Typically you are going to want to generate a Rails app using some officially
+released version of the framework. These releases have been thoroughly tested,
+have received patches, and can guarantee a certain level of stability.
+
+However, if you are wanting to try out the latest, unreleased features, you may
+want to generate a fresh Rails app based off the current state of the `main`
+branch of the `rails` repository.
+
+To do this, add the `--main` flag:
+
+```bash
+$ rails new rails_app_on_main --main
+```
+
+Toward the top of your app's `Gemfile`, you'll see that `rails` is pointed to
+the `main` branch of their repo:
+
+```ruby
+# Use main development branch of Rails
+gem "rails", github: "rails/rails", branch: "main"
+```
+
+See `rails new --help` for more details
+
+[source](https://x.com/gregmolnar/status/1832720168264286571)

unix/convert-svg-to-favicon.md

@@ -0,0 +1,28 @@
+# Convert SVG To Favicon
+
+The imagemagick `convert` CLI tool can convert an SVG file into a transparent
+favicon (ICO) file with the different standard sizes.
+
+Assuming the background that we want to make transparent is white, then include
+`-transparent white` and then to resize the icon include `-define
+icon:auto-resize ...`. Point to the `image.svg` to be converted and specify the
+name of the output file (`favicon.ico`).
+
+```bash
+$ convert image.svg -transparent white -define icon:auto-resize=16,32,48,64,128 favicon.ico
+```
+
+We can then use the `identify` CLI to inspect the `favicon.ico` file to see
+that the above worked.
+
+```bash
+$ identify favicon.ico
+
+favicon.ico[0] ICO 16x16 16x16+0+0 8-bit sRGB 0.000u 0:00.002
+favicon.ico[1] ICO 32x32 32x32+0+0 8-bit sRGB 0.000u 0:00.004
+favicon.ico[2] ICO 48x48 48x48+0+0 8-bit sRGB 0.000u 0:00.004
+favicon.ico[3] ICO 64x64 64x64+0+0 8-bit sRGB 0.000u 0:00.004
+favicon.ico[4] ICO 128x128 128x128+0+0 8-bit sRGB 99678B 0.000u 0:00.003
+```
+
+[source](https://www.joshmcarthur.com/2024/06/19/Auto-resizing-images-for-.ico-files.html)