diff --git a/.github/workflows/sorted.yml b/.github/workflows/sorted.yml
new file mode 100644
index 0000000..0de38ff
--- /dev/null
+++ b/.github/workflows/sorted.yml
@@ -0,0 +1,16 @@
+name: Exercise order
+
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  call-gha-workflow:
+    name: Check
+    uses: exercism/github-actions/.github/workflows/sorted.yml@main
+    with:
+      ordering: ".bucket, .lowercase_name"
diff --git a/bin/sort-practice-exercises b/bin/sort-practice-exercises
new file mode 100644
index 0000000..2ce7c22
--- /dev/null
+++ b/bin/sort-practice-exercises
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+die () { echo "$*" >&2; exit 1; }
+
+(( $# == 2 )) || die "Usage: $0 <comparison-type> <config.json>"
+[[ -r $2 ]] || die "$2 is not a readable file"
+
+tmp=$(mktemp)
+jq -r '
+  # Bucket by displayed difficulty. 0-3: easy; 4-7: medium; 8-10: hard.
+  def bucket(i): [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3][i];
+  # Code injection to inject the sort literal expression.
+  def sort: sort_by('"$1"');
+  .exercises.practice = (
+    .exercises.practice |
+    # Add displayed difficulty
+    map(.lowercase_name = (.name | ascii_downcase)) |
+    map(.bucket = bucket(.difficulty)) |
+    # Leave hello-world at the top
+    if .[0].slug == "hello-world" then
+      [.[0]] + (.[1:] | sort)
+    else
+      sort
+    end |
+    map(del(.lowercase_name)) |
+    map(del(.bucket))
+  )
+' "$2" > "$tmp" && \
+cat "$tmp" > "$2"
+rm "$tmp"
diff --git a/config.json b/config.json
index 0ec0745..af9414b 100644
--- a/config.json
+++ b/config.json
@@ -99,6 +99,14 @@
           "math"
         ]
       },
+      {
+        "slug": "binary-search",
+        "name": "Binary Search",
+        "uuid": "7177483a-8370-4d24-81c4-8dfdfd83846d",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
+      },
       {
         "slug": "bob",
         "name": "Bob",
@@ -115,6 +123,14 @@
         "prerequisites": [],
         "difficulty": 2
       },
+      {
+        "slug": "dnd-character",
+        "name": "D&D Character",
+        "uuid": "eba5ba27-1c8b-485a-8bf4-08df4239a6f3",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
+      },
       {
         "slug": "darts",
         "name": "Darts",
@@ -134,6 +150,14 @@
           "math"
         ]
       },
+      {
+        "slug": "eliuds-eggs",
+        "name": "Eliud's Eggs",
+        "uuid": "e02de36d-defa-495b-8940-6b2a179afc87",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
+      },
       {
         "slug": "gigasecond",
         "name": "Gigasecond",
@@ -191,41 +215,41 @@
         "difficulty": 2
       },
       {
-        "slug": "nucleotide-count",
-        "name": "Nucleotide Count",
-        "uuid": "9b1ae897-b15d-4180-af45-1c69f98a8f34",
+        "slug": "list-ops",
+        "name": "List Ops",
+        "uuid": "f5ade076-6afd-4f03-8916-543cb7f350a1",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "perfect-numbers",
-        "name": "Perfect Numbers",
-        "uuid": "659d24f5-1e6d-4622-a2dc-177aecc10fae",
+        "slug": "nucleotide-count",
+        "name": "Nucleotide Count",
+        "uuid": "9b1ae897-b15d-4180-af45-1c69f98a8f34",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "resistor-color",
-        "name": "Resistor Color",
-        "uuid": "2af13bc4-76d6-4986-988f-b6acce6aa128",
+        "slug": "pangram",
+        "name": "Pangram",
+        "uuid": "d319360a-afef-4b65-be5f-da45d48367cb",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "resistor-color-duo",
-        "name": "Resistor Color Duo",
-        "uuid": "be651c89-5bb7-4842-8fa8-8c65431281a0",
+        "slug": "perfect-numbers",
+        "name": "Perfect Numbers",
+        "uuid": "659d24f5-1e6d-4622-a2dc-177aecc10fae",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "resistor-color-trio",
-        "name": "Resistor Color Trio",
-        "uuid": "69121bed-8952-4ca4-a64a-2fab8e94b949",
+        "slug": "protein-translation",
+        "name": "Protein Translation",
+        "uuid": "b61ac6a8-b40d-48ea-8a72-89608506c256",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
@@ -239,88 +263,49 @@
         "difficulty": 2
       },
       {
-        "slug": "rna-transcription",
-        "name": "RNA Transcription",
-        "uuid": "8db0d097-9758-4671-81ff-fd8111c4fd7d",
-        "practices": [],
-        "prerequisites": [],
-        "difficulty": 2
-      },
-      {
-        "slug": "secret-handshake",
-        "name": "Secret Handshake",
-        "uuid": "7d6e5c28-7f7a-4d76-8533-390c9cc86586",
-        "practices": [],
-        "prerequisites": [],
-        "difficulty": 2
-      },
-      {
-        "slug": "space-age",
-        "name": "Space Age",
-        "uuid": "dfb7c4aa-dc52-4973-8c50-f5153ab51406",
+        "slug": "raindrops",
+        "name": "Raindrops",
+        "uuid": "d53f769b-b294-4fb0-a336-881549a15a94",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "strain",
-        "name": "Strain",
-        "uuid": "fe975ff0-e374-44c9-910b-740cc3cff4ad",
+        "slug": "resistor-color",
+        "name": "Resistor Color",
+        "uuid": "2af13bc4-76d6-4986-988f-b6acce6aa128",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "sum-of-multiples",
-        "name": "Sum of Multiples",
-        "uuid": "8f8697e6-2e8b-47dc-8bd0-747f29b93ae7",
-        "practices": [],
-        "prerequisites": [],
-        "difficulty": 2,
-        "topics": [
-          "math"
-        ]
-      },
-      {
-        "slug": "trinary",
-        "name": "Trinary",
-        "uuid": "db8c35d3-5203-4b3c-bb58-bd7a42ab2e5d",
-        "practices": [],
-        "prerequisites": [],
-        "difficulty": 2,
-        "status": "deprecated",
-        "topics": [
-          "math"
-        ]
-      },
-      {
-        "slug": "two-fer",
-        "name": "Two-Fer",
-        "uuid": "b186e735-f638-4836-97c1-9c78c5e0078e",
+        "slug": "resistor-color-duo",
+        "name": "Resistor Color Duo",
+        "uuid": "be651c89-5bb7-4842-8fa8-8c65431281a0",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "raindrops",
-        "name": "Raindrops",
-        "uuid": "d53f769b-b294-4fb0-a336-881549a15a94",
+        "slug": "resistor-color-trio",
+        "name": "Resistor Color Trio",
+        "uuid": "69121bed-8952-4ca4-a64a-2fab8e94b949",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "eliuds-eggs",
-        "name": "Eliud's Eggs",
-        "uuid": "e02de36d-defa-495b-8940-6b2a179afc87",
+        "slug": "reverse-string",
+        "name": "Reverse String",
+        "uuid": "a6a5838c-f35c-4fd2-ab80-62d6a61dd6b3",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "reverse-string",
-        "name": "Reverse String",
-        "uuid": "a6a5838c-f35c-4fd2-ab80-62d6a61dd6b3",
+        "slug": "rna-transcription",
+        "name": "RNA Transcription",
+        "uuid": "8db0d097-9758-4671-81ff-fd8111c4fd7d",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
@@ -342,37 +327,48 @@
         "difficulty": 2
       },
       {
-        "slug": "protein-translation",
-        "name": "Protein Translation",
-        "uuid": "b61ac6a8-b40d-48ea-8a72-89608506c256",
+        "slug": "secret-handshake",
+        "name": "Secret Handshake",
+        "uuid": "7d6e5c28-7f7a-4d76-8533-390c9cc86586",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "dnd-character",
-        "name": "D&D Character",
-        "uuid": "eba5ba27-1c8b-485a-8bf4-08df4239a6f3",
+        "slug": "space-age",
+        "name": "Space Age",
+        "uuid": "dfb7c4aa-dc52-4973-8c50-f5153ab51406",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "pangram",
-        "name": "Pangram",
-        "uuid": "d319360a-afef-4b65-be5f-da45d48367cb",
+        "slug": "square-root",
+        "name": "Square Root",
+        "uuid": "aa031ed2-2e79-4956-8e31-9c86b971589a",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
       {
-        "slug": "list-ops",
-        "name": "List Ops",
-        "uuid": "f5ade076-6afd-4f03-8916-543cb7f350a1",
+        "slug": "strain",
+        "name": "Strain",
+        "uuid": "fe975ff0-e374-44c9-910b-740cc3cff4ad",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
       },
+      {
+        "slug": "sum-of-multiples",
+        "name": "Sum of Multiples",
+        "uuid": "8f8697e6-2e8b-47dc-8bd0-747f29b93ae7",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "math"
+        ]
+      },
       {
         "slug": "triangle",
         "name": "Triangle",
@@ -382,17 +378,21 @@
         "difficulty": 2
       },
       {
-        "slug": "binary-search",
-        "name": "Binary Search",
-        "uuid": "7177483a-8370-4d24-81c4-8dfdfd83846d",
+        "slug": "trinary",
+        "name": "Trinary",
+        "uuid": "db8c35d3-5203-4b3c-bb58-bd7a42ab2e5d",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 2
+        "difficulty": 2,
+        "status": "deprecated",
+        "topics": [
+          "math"
+        ]
       },
       {
-        "slug": "square-root",
-        "name": "Square Root",
-        "uuid": "aa031ed2-2e79-4956-8e31-9c86b971589a",
+        "slug": "two-fer",
+        "name": "Two-Fer",
+        "uuid": "b186e735-f638-4836-97c1-9c78c5e0078e",
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
@@ -406,17 +406,17 @@
         "difficulty": 2
       },
       {
-        "slug": "allergies",
-        "name": "Allergies",
-        "uuid": "68eec796-a269-4e66-84b5-e26574ff614e",
+        "slug": "all-your-base",
+        "name": "All Your Base",
+        "uuid": "b226abea-2da6-4af5-9a56-af1f21431130",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
       },
       {
-        "slug": "all-your-base",
-        "name": "All Your Base",
-        "uuid": "b226abea-2da6-4af5-9a56-af1f21431130",
+        "slug": "allergies",
+        "name": "Allergies",
+        "uuid": "68eec796-a269-4e66-84b5-e26574ff614e",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
@@ -454,17 +454,17 @@
         "difficulty": 5
       },
       {
-        "slug": "grade-school",
-        "name": "Grade School",
-        "uuid": "d9013304-cc50-4a56-a645-51c4a80f1c82",
+        "slug": "flower-field",
+        "name": "Flower Field",
+        "uuid": "0643257b-8e60-4d6f-9668-86173c24a77b",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
       },
       {
-        "slug": "flower-field",
-        "name": "Flower Field",
-        "uuid": "0643257b-8e60-4d6f-9668-86173c24a77b",
+        "slug": "grade-school",
+        "name": "Grade School",
+        "uuid": "d9013304-cc50-4a56-a645-51c4a80f1c82",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
@@ -477,6 +477,14 @@
         "prerequisites": [],
         "difficulty": 5
       },
+      {
+        "slug": "knapsack",
+        "name": "Knapsack",
+        "uuid": "5b7094ea-9702-41ca-b13b-c2100cda0bdc",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 5
+      },
       {
         "slug": "largest-series-product",
         "name": "Largest Series Product",
@@ -545,33 +553,33 @@
         "difficulty": 5
       },
       {
-        "slug": "series",
-        "name": "Series",
-        "uuid": "f2ca089e-66db-4b85-8275-5932952a36bf",
+        "slug": "roman-numerals",
+        "name": "Roman Numerals",
+        "uuid": "461223ea-e86b-4b94-9e7a-ac3ec1aa8a12",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
       },
       {
-        "slug": "word-count",
-        "name": "Word Count",
-        "uuid": "5fca0d45-2bf5-486e-9c57-25cff5e4a9c5",
+        "slug": "series",
+        "name": "Series",
+        "uuid": "f2ca089e-66db-4b85-8275-5932952a36bf",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
       },
       {
-        "slug": "roman-numerals",
-        "name": "Roman Numerals",
-        "uuid": "461223ea-e86b-4b94-9e7a-ac3ec1aa8a12",
+        "slug": "sieve",
+        "name": "Sieve",
+        "uuid": "50f4505d-c82a-46a7-bfeb-0100c5f2d45f",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
       },
       {
-        "slug": "sieve",
-        "name": "Sieve",
-        "uuid": "50f4505d-c82a-46a7-bfeb-0100c5f2d45f",
+        "slug": "word-count",
+        "name": "Word Count",
+        "uuid": "5fca0d45-2bf5-486e-9c57-25cff5e4a9c5",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
@@ -591,14 +599,6 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 8
-      },
-      {
-        "slug": "knapsack",
-        "name": "Knapsack",
-        "uuid": "5b7094ea-9702-41ca-b13b-c2100cda0bdc",
-        "practices": [],
-        "prerequisites": [],
-        "difficulty": 5
       }
     ]
   },