diff --git a/Gemfile b/Gemfile
index 52045dd..1b6704e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -66,6 +66,7 @@ group :development do
   gem 'letter_opener'
   gem 'letter_opener_web'
   gem 'faker'
+  gem 'solargraph'
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 7c655ba..2d92414 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,7 +68,10 @@ GEM
       tzinfo (~> 2.0)
     addressable (2.8.1)
       public_suffix (>= 2.0.2, < 6.0)
+    ast (2.4.2)
+    backport (1.2.0)
     bcrypt (3.1.18)
+    benchmark (0.2.1)
     bindex (0.8.1)
     builder (3.2.4)
     byebug (11.1.3)
@@ -109,6 +112,7 @@ GEM
     dotenv-rails (2.8.1)
       dotenv (= 2.8.1)
       railties (>= 3.2)
+    e2mmap (0.1.0)
     erubi (1.11.0)
     et-orbi (1.2.7)
       tzinfo
@@ -135,9 +139,15 @@ GEM
     importmap-rails (1.1.5)
       actionpack (>= 6.0.0)
       railties (>= 6.0.0)
+    jaro_winkler (1.5.4)
     jbuilder (2.11.5)
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
+    json (2.6.3)
+    kramdown (2.4.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
     launchy (2.5.0)
       addressable (~> 2.7)
     letter_opener (1.8.1)
@@ -179,6 +189,9 @@ GEM
       racc (~> 1.4)
     orm_adapter (0.5.0)
     pagy (6.0.2)
+    parallel (1.22.1)
+    parser (3.2.1.1)
+      ast (~> 2.4.1)
     pg (1.2.3)
     public_suffix (5.0.0)
     puma (4.3.12)
@@ -217,6 +230,7 @@ GEM
       rake (>= 12.2)
       thor (~> 1.0)
       zeitwerk (~> 2.5)
+    rainbow (3.1.1)
     rake (13.0.6)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
@@ -229,6 +243,8 @@ GEM
     responders (3.1.0)
       actionpack (>= 5.2)
       railties (>= 5.2)
+    reverse_markdown (2.1.1)
+      nokogiri
     rexml (3.2.5)
     rqrcode (2.1.2)
       chunky_png (~> 1.0)
@@ -251,6 +267,19 @@ GEM
       rspec-mocks (~> 3.11)
       rspec-support (~> 3.11)
     rspec-support (3.12.0)
+    rubocop (1.48.1)
+      json (~> 2.3)
+      parallel (~> 1.10)
+      parser (>= 3.2.0.0)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.26.0, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.28.0)
+      parser (>= 3.2.1.0)
+    ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
     rufus-scheduler (3.8.2)
       fugit (~> 1.1, >= 1.1.6)
@@ -268,6 +297,21 @@ GEM
       rufus-scheduler (~> 3.2)
       sidekiq (>= 4, < 7)
       tilt (>= 1.4.0)
+    solargraph (0.48.0)
+      backport (~> 1.2)
+      benchmark
+      bundler (>= 1.17.2)
+      diff-lcs (~> 1.4)
+      e2mmap
+      jaro_winkler (~> 1.5)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.1)
+      parser (~> 3.0)
+      reverse_markdown (>= 1.0.5, < 3)
+      rubocop (>= 0.52)
+      thor (~> 1.0)
+      tilt (~> 2.0)
+      yard (~> 0.9, >= 0.9.24)
     sprockets (4.1.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -289,6 +333,7 @@ GEM
       railties (>= 6.0.0)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
+    unicode-display_width (2.4.2)
     view_component (2.78.0)
       activesupport (>= 5.0.0, < 8.0)
       concurrent-ruby (~> 1.0)
@@ -304,11 +349,14 @@ GEM
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
+    webrick (1.7.0)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
+    yard (0.9.28)
+      webrick (~> 1.7.0)
     zeitwerk (2.6.6)
 
 PLATFORMS
@@ -344,6 +392,7 @@ DEPENDENCIES
   sentry-ruby
   sidekiq (< 7)
   sidekiq-scheduler
+  solargraph
   sprockets-rails
   sqlite3 (~> 1.4)
   stimulus-rails
diff --git a/README.md b/README.md
index 6ff6c17..6e55882 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,6 @@ so:
 
 After these steps, you should have a working Rails app with a handful of test
 users running on [http://localhost:3000](http://localhost:3000).
-
 Log in with username "admin" and password "admin is admin". All users listed on
 [http://localhost:3000/admin/ldap_users](http://localhost:3000/admin/ldap_users)
 have the password "user is user".
@@ -79,6 +78,15 @@ The setup task will first delete any existing entries in the directory tree
 Note that all 389ds data is stored in `tmp/389ds`. So if you want to start over
 with a fresh installation, delete both that directory as well as the container.
 
+#### Solargraph
+
+[Solargraph](https://solargraph.org/) is a Ruby language server, which you may
+use with your editor to add features like auto-completion and syntax
+validation. You can add inline documentation for bundled gems with this
+command:
+
+    bundle exec yard gems
+
 ## Documentation
 
 ### Rails