diff --git a/config.json b/config.json
index 5e590017..9812a6de 100644
--- a/config.json
+++ b/config.json
@@ -21,13 +21,13 @@
   "checklist_issue": 30,
   "files": {
     "solution": [
-      "%{pascal_slug}.rakumod"
+      "lib/%{pascal_slug}.rakumod"
     ],
     "test": [
-      "%{kebab_slug}.rakutest"
+      "t/%{kebab_slug}.rakutest"
     ],
     "example": [
-      ".meta/solutions/%{pascal_slug}.rakumod"
+      ".meta/solutions/lib/%{pascal_slug}.rakumod"
     ],
     "exemplar": [
       ".meta/%{pascal_slug}.rakumod"
diff --git a/exercises/practice/accumulate/.meta/config.json b/exercises/practice/accumulate/.meta/config.json
index 6d99246f..72552f15 100644
--- a/exercises/practice/accumulate/.meta/config.json
+++ b/exercises/practice/accumulate/.meta/config.json
@@ -10,13 +10,13 @@
   ],
   "files": {
     "solution": [
-      "Accumulate.rakumod"
+      "lib/Accumulate.rakumod"
     ],
     "test": [
-      "accumulate.rakutest"
+      "t/accumulate.rakutest"
     ],
     "example": [
-      ".meta/solutions/Accumulate.rakumod"
+      ".meta/solutions/lib/Accumulate.rakumod"
     ]
   },
   "blurb": "Implement the `accumulate` operation, which, given a collection and an operation to perform on each element of the collection, returns a new collection containing the result of applying that operation to each element of the input collection.",
diff --git a/exercises/practice/acronym/.meta/config.json b/exercises/practice/acronym/.meta/config.json
index 324508a4..a13a1755 100644
--- a/exercises/practice/acronym/.meta/config.json
+++ b/exercises/practice/acronym/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "Acronym.rakumod"
+      "lib/Acronym.rakumod"
     ],
     "test": [
-      "acronym.rakutest"
+      "t/acronym.rakutest"
     ],
     "example": [
-      ".meta/solutions/Acronym.rakumod"
+      ".meta/solutions/lib/Acronym.rakumod"
     ]
   },
   "blurb": "Convert a long phrase to its acronym.",
diff --git a/exercises/practice/affine-cipher/.meta/config.json b/exercises/practice/affine-cipher/.meta/config.json
index 1bbecc42..85a213ca 100644
--- a/exercises/practice/affine-cipher/.meta/config.json
+++ b/exercises/practice/affine-cipher/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "AffineCipher.rakumod"
+      "lib/AffineCipher.rakumod"
     ],
     "test": [
-      "affine-cipher.rakutest"
+      "t/affine-cipher.rakutest"
     ],
     "example": [
-      ".meta/solutions/AffineCipher.rakumod"
+      ".meta/solutions/lib/AffineCipher.rakumod"
     ]
   },
   "blurb": "Create an implementation of the Affine cipher, an ancient encryption algorithm from the Middle East.",
diff --git a/exercises/practice/all-your-base/.meta/config.json b/exercises/practice/all-your-base/.meta/config.json
index a41a31be..e16ad2ae 100644
--- a/exercises/practice/all-your-base/.meta/config.json
+++ b/exercises/practice/all-your-base/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "AllYourBase.rakumod"
+      "lib/AllYourBase.rakumod"
     ],
     "test": [
-      "all-your-base.rakutest"
+      "t/all-your-base.rakutest"
     ],
     "example": [
-      ".meta/solutions/AllYourBase.rakumod"
+      ".meta/solutions/lib/AllYourBase.rakumod"
     ]
   },
   "blurb": "Convert a number, represented as a sequence of digits in one base, to any other base."
diff --git a/exercises/practice/allergies/.meta/config.json b/exercises/practice/allergies/.meta/config.json
index ea05ff08..e6ea5466 100644
--- a/exercises/practice/allergies/.meta/config.json
+++ b/exercises/practice/allergies/.meta/config.json
@@ -8,13 +8,13 @@
   ],
   "files": {
     "solution": [
-      "Allergies.rakumod"
+      "lib/Allergies.rakumod"
     ],
     "test": [
-      "allergies.rakutest"
+      "t/allergies.rakutest"
     ],
     "example": [
-      ".meta/solutions/Allergies.rakumod"
+      ".meta/solutions/lib/Allergies.rakumod"
     ]
   },
   "blurb": "Given a person's allergy score, determine whether or not they're allergic to a given item, and their full list of allergies.",
diff --git a/exercises/practice/anagram/.meta/config.json b/exercises/practice/anagram/.meta/config.json
index 69d65974..862e1007 100644
--- a/exercises/practice/anagram/.meta/config.json
+++ b/exercises/practice/anagram/.meta/config.json
@@ -11,13 +11,13 @@
   ],
   "files": {
     "solution": [
-      "Anagram.rakumod"
+      "lib/Anagram.rakumod"
     ],
     "test": [
-      "anagram.rakutest"
+      "t/anagram.rakutest"
     ],
     "example": [
-      ".meta/solutions/Anagram.rakumod"
+      ".meta/solutions/lib/Anagram.rakumod"
     ]
   },
   "blurb": "Given a word and a list of possible anagrams, select the correct sublist.",
diff --git a/exercises/practice/armstrong-numbers/.meta/config.json b/exercises/practice/armstrong-numbers/.meta/config.json
index c58e688b..c0851fd8 100644
--- a/exercises/practice/armstrong-numbers/.meta/config.json
+++ b/exercises/practice/armstrong-numbers/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "ArmstrongNumbers.rakumod"
+      "lib/ArmstrongNumbers.rakumod"
     ],
     "test": [
-      "armstrong-numbers.rakutest"
+      "t/armstrong-numbers.rakutest"
     ],
     "example": [
-      ".meta/solutions/ArmstrongNumbers.rakumod"
+      ".meta/solutions/lib/ArmstrongNumbers.rakumod"
     ]
   },
   "blurb": "Determine if a number is an Armstrong number.",
diff --git a/exercises/practice/atbash-cipher/.meta/config.json b/exercises/practice/atbash-cipher/.meta/config.json
index 758ef80a..bc3c5f35 100644
--- a/exercises/practice/atbash-cipher/.meta/config.json
+++ b/exercises/practice/atbash-cipher/.meta/config.json
@@ -8,13 +8,13 @@
   ],
   "files": {
     "solution": [
-      "AtbashCipher.rakumod"
+      "lib/AtbashCipher.rakumod"
     ],
     "test": [
-      "atbash-cipher.rakutest"
+      "t/atbash-cipher.rakutest"
     ],
     "example": [
-      ".meta/solutions/AtbashCipher.rakumod"
+      ".meta/solutions/lib/AtbashCipher.rakumod"
     ]
   },
   "blurb": "Create an implementation of the atbash cipher, an ancient encryption system created in the Middle East.",
diff --git a/exercises/practice/beer-song/.meta/config.json b/exercises/practice/beer-song/.meta/config.json
index 36567a4a..4cb3d412 100644
--- a/exercises/practice/beer-song/.meta/config.json
+++ b/exercises/practice/beer-song/.meta/config.json
@@ -2,13 +2,13 @@
   "authors": ["m-dango"],
   "files": {
     "solution": [
-      "BeerSong.rakumod"
+      "lib/BeerSong.rakumod"
     ],
     "test": [
-      "beer-song.rakutest"
+      "t/beer-song.rakutest"
     ],
     "example": [
-      ".meta/solutions/BeerSong.rakumod"
+      ".meta/solutions/lib/BeerSong.rakumod"
     ]
   },
   "blurb": "Produce the lyrics to that beloved classic, that field-trip favorite: 99 Bottles of Beer on the Wall.",
diff --git a/exercises/practice/binary-search-tree/.meta/config.json b/exercises/practice/binary-search-tree/.meta/config.json
index a8307fdf..4ee51b07 100644
--- a/exercises/practice/binary-search-tree/.meta/config.json
+++ b/exercises/practice/binary-search-tree/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "BinarySearchTree.rakumod"
+      "lib/BinarySearchTree.rakumod"
     ],
     "test": [
-      "binary-search-tree.rakutest"
+      "t/binary-search-tree.rakutest"
     ],
     "example": [
-      ".meta/solutions/BinarySearchTree.rakumod"
+      ".meta/solutions/lib/BinarySearchTree.rakumod"
     ]
   },
   "blurb": "Insert and search for numbers in a binary tree.",
diff --git a/exercises/practice/binary-search/.meta/config.json b/exercises/practice/binary-search/.meta/config.json
index c42018ef..83cdb74a 100644
--- a/exercises/practice/binary-search/.meta/config.json
+++ b/exercises/practice/binary-search/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "BinarySearch.rakumod"
+      "lib/BinarySearch.rakumod"
     ],
     "test": [
-      "binary-search.rakutest"
+      "t/binary-search.rakutest"
     ],
     "example": [
-      ".meta/solutions/BinarySearch.rakumod"
+      ".meta/solutions/lib/BinarySearch.rakumod"
     ]
   },
   "blurb": "Implement a binary search algorithm.",
diff --git a/exercises/practice/bob/.meta/config.json b/exercises/practice/bob/.meta/config.json
index 791e73ad..d1cef85d 100644
--- a/exercises/practice/bob/.meta/config.json
+++ b/exercises/practice/bob/.meta/config.json
@@ -11,13 +11,13 @@
   ],
   "files": {
     "solution": [
-      "Bob.rakumod"
+      "lib/Bob.rakumod"
     ],
     "test": [
-      "bob.rakutest"
+      "t/bob.rakutest"
     ],
     "example": [
-      ".meta/solutions/Bob.rakumod"
+      ".meta/solutions/lib/Bob.rakumod"
     ]
   },
   "blurb": "Bob is a lackadaisical teenager. In conversation, his responses are very limited.",
diff --git a/exercises/practice/book-store/.meta/config.json b/exercises/practice/book-store/.meta/config.json
index 24ec8927..0a994b0c 100644
--- a/exercises/practice/book-store/.meta/config.json
+++ b/exercises/practice/book-store/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "BookStore.rakumod"
+      "lib/BookStore.rakumod"
     ],
     "test": [
-      "book-store.rakutest"
+      "t/book-store.rakutest"
     ],
     "example": [
-      ".meta/solutions/BookStore.rakumod"
+      ".meta/solutions/lib/BookStore.rakumod"
     ]
   },
   "blurb": "To try and encourage more sales of different books from a popular 5 book series, a bookshop has decided to offer discounts of multiple-book purchases.",
diff --git a/exercises/practice/bottle-song/.meta/config.json b/exercises/practice/bottle-song/.meta/config.json
index 203d1446..b9262efd 100644
--- a/exercises/practice/bottle-song/.meta/config.json
+++ b/exercises/practice/bottle-song/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "BottleSong.rakumod"
+      "lib/BottleSong.rakumod"
     ],
     "test": [
-      "bottle-song.rakutest"
+      "t/bottle-song.rakutest"
     ],
     "example": [
-      ".meta/solutions/BottleSong.rakumod"
+      ".meta/solutions/lib/BottleSong.rakumod"
     ]
   },
   "blurb": "Produce the lyrics to the popular children's repetitive song: Ten Green Bottles.",
diff --git a/exercises/practice/clock/.meta/config.json b/exercises/practice/clock/.meta/config.json
index a08b7922..ed78c3ad 100644
--- a/exercises/practice/clock/.meta/config.json
+++ b/exercises/practice/clock/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "Clock.rakumod"
+      "lib/Clock.rakumod"
     ],
     "test": [
-      "clock.rakutest"
+      "t/clock.rakutest"
     ],
     "example": [
-      ".meta/solutions/Clock.rakumod"
+      ".meta/solutions/lib/Clock.rakumod"
     ]
   },
   "blurb": "Implement a clock that handles times without dates.",
diff --git a/exercises/practice/collatz-conjecture/.meta/config.json b/exercises/practice/collatz-conjecture/.meta/config.json
index 5e1befef..0a20b7a9 100644
--- a/exercises/practice/collatz-conjecture/.meta/config.json
+++ b/exercises/practice/collatz-conjecture/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "CollatzConjecture.rakumod"
+      "lib/CollatzConjecture.rakumod"
     ],
     "test": [
-      "collatz-conjecture.rakutest"
+      "t/collatz-conjecture.rakutest"
     ],
     "example": [
-      ".meta/solutions/CollatzConjecture.rakumod"
+      ".meta/solutions/lib/CollatzConjecture.rakumod"
     ]
   },
   "blurb": "Calculate the number of steps to reach 1 using the Collatz conjecture.",
diff --git a/exercises/practice/crypto-square/.meta/config.json b/exercises/practice/crypto-square/.meta/config.json
index 65590b57..aca8a8a8 100644
--- a/exercises/practice/crypto-square/.meta/config.json
+++ b/exercises/practice/crypto-square/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "CryptoSquare.rakumod"
+      "lib/CryptoSquare.rakumod"
     ],
     "test": [
-      "crypto-square.rakutest"
+      "t/crypto-square.rakutest"
     ],
     "example": [
-      ".meta/solutions/CryptoSquare.rakumod"
+      ".meta/solutions/lib/CryptoSquare.rakumod"
     ]
   },
   "blurb": "Implement the classic method for composing secret messages called a square code.",
diff --git a/exercises/practice/darts/.meta/config.json b/exercises/practice/darts/.meta/config.json
index 7169ded4..8a40ddb7 100644
--- a/exercises/practice/darts/.meta/config.json
+++ b/exercises/practice/darts/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "Darts.rakumod"
+      "lib/Darts.rakumod"
     ],
     "test": [
-      "darts.rakutest"
+      "t/darts.rakutest"
     ],
     "example": [
-      ".meta/solutions/Darts.rakumod"
+      ".meta/solutions/lib/Darts.rakumod"
     ]
   },
   "blurb": "Write a function that returns the earned points in a single toss of a Darts game.",
diff --git a/exercises/practice/diamond/.meta/config.json b/exercises/practice/diamond/.meta/config.json
index c3511c47..1543b059 100644
--- a/exercises/practice/diamond/.meta/config.json
+++ b/exercises/practice/diamond/.meta/config.json
@@ -3,13 +3,13 @@
   "contributors": ["util"],
   "files": {
     "solution": [
-      "Diamond.rakumod"
+      "lib/Diamond.rakumod"
     ],
     "test": [
-      "diamond.rakutest"
+      "t/diamond.rakutest"
     ],
     "example": [
-      ".meta/solutions/Diamond.rakumod"
+      ".meta/solutions/lib/Diamond.rakumod"
     ]
   },
   "blurb": "Given a letter, print a diamond starting with 'A' with the supplied letter at the widest point.",
diff --git a/exercises/practice/difference-of-squares/.meta/config.json b/exercises/practice/difference-of-squares/.meta/config.json
index 16ec21da..6d18e687 100644
--- a/exercises/practice/difference-of-squares/.meta/config.json
+++ b/exercises/practice/difference-of-squares/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "DifferenceOfSquares.rakumod"
+      "lib/DifferenceOfSquares.rakumod"
     ],
     "test": [
-      "difference-of-squares.rakutest"
+      "t/difference-of-squares.rakutest"
     ],
     "example": [
-      ".meta/solutions/DifferenceOfSquares.rakumod"
+      ".meta/solutions/lib/DifferenceOfSquares.rakumod"
     ]
   },
   "blurb": "Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.",
diff --git a/exercises/practice/etl/.meta/config.json b/exercises/practice/etl/.meta/config.json
index ca384fb0..ed70dd3a 100644
--- a/exercises/practice/etl/.meta/config.json
+++ b/exercises/practice/etl/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "ETL.rakumod"
+      "lib/ETL.rakumod"
     ],
     "test": [
-      "etl.rakutest"
+      "t/etl.rakutest"
     ],
     "example": [
-      ".meta/solutions/ETL.rakumod"
+      ".meta/solutions/lib/ETL.rakumod"
     ]
   },
   "blurb": "Change the data format for scoring a game to more easily add other languages.",
diff --git a/exercises/practice/flatten-array/.meta/config.json b/exercises/practice/flatten-array/.meta/config.json
index 88a9c09a..6f3b2399 100644
--- a/exercises/practice/flatten-array/.meta/config.json
+++ b/exercises/practice/flatten-array/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "FlattenArray.rakumod"
+      "lib/FlattenArray.rakumod"
     ],
     "test": [
-      "flatten-array.rakutest"
+      "t/flatten-array.rakutest"
     ],
     "example": [
-      ".meta/solutions/FlattenArray.rakumod"
+      ".meta/solutions/lib/FlattenArray.rakumod"
     ]
   },
   "blurb": "Take a nested list and return a single list with all values except nil/null.",
diff --git a/exercises/practice/gigasecond/.meta/config.json b/exercises/practice/gigasecond/.meta/config.json
index 153011e2..bb2ffed2 100644
--- a/exercises/practice/gigasecond/.meta/config.json
+++ b/exercises/practice/gigasecond/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "Gigasecond.rakumod"
+      "lib/Gigasecond.rakumod"
     ],
     "test": [
-      "gigasecond.rakutest"
+      "t/gigasecond.rakutest"
     ],
     "example": [
-      ".meta/solutions/Gigasecond.rakumod"
+      ".meta/solutions/lib/Gigasecond.rakumod"
     ]
   },
   "blurb": "Given a moment, determine the moment that would be after a gigasecond has passed.",
diff --git a/exercises/practice/grade-school/.meta/config.json b/exercises/practice/grade-school/.meta/config.json
index 7f100e3a..d7e926c9 100644
--- a/exercises/practice/grade-school/.meta/config.json
+++ b/exercises/practice/grade-school/.meta/config.json
@@ -6,13 +6,13 @@
   ],
   "files": {
     "solution": [
-      "GradeSchool.rakumod"
+      "lib/GradeSchool.rakumod"
     ],
     "test": [
-      "grade-school.rakutest"
+      "t/grade-school.rakutest"
     ],
     "example": [
-      ".meta/solutions/GradeSchool.rakumod"
+      ".meta/solutions/lib/GradeSchool.rakumod"
     ]
   },
   "blurb": "Given students' names along with the grade that they are in, create a roster for the school.",
diff --git a/exercises/practice/grains/.meta/config.json b/exercises/practice/grains/.meta/config.json
index ca260eda..fa5c4394 100644
--- a/exercises/practice/grains/.meta/config.json
+++ b/exercises/practice/grains/.meta/config.json
@@ -9,13 +9,13 @@
   ],
   "files": {
     "solution": [
-      "Grains.rakumod"
+      "lib/Grains.rakumod"
     ],
     "test": [
-      "grains.rakutest"
+      "t/grains.rakutest"
     ],
     "example": [
-      ".meta/solutions/Grains.rakumod"
+      ".meta/solutions/lib/Grains.rakumod"
     ]
   },
   "blurb": "Calculate the number of grains of wheat on a chessboard given that the number on each square doubles.",
diff --git a/exercises/practice/hamming/.meta/config.json b/exercises/practice/hamming/.meta/config.json
index 6d3bec9e..58ecab62 100644
--- a/exercises/practice/hamming/.meta/config.json
+++ b/exercises/practice/hamming/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Hamming.rakumod"
+      "lib/Hamming.rakumod"
     ],
     "test": [
-      "hamming.rakutest"
+      "t/hamming.rakutest"
     ],
     "example": [
-      ".meta/solutions/Hamming.rakumod"
+      ".meta/solutions/lib/Hamming.rakumod"
     ]
   },
   "blurb": "Calculate the Hamming difference between two DNA strands.",
diff --git a/exercises/practice/hello-world/.meta/config.json b/exercises/practice/hello-world/.meta/config.json
index a73e0817..7192a308 100644
--- a/exercises/practice/hello-world/.meta/config.json
+++ b/exercises/practice/hello-world/.meta/config.json
@@ -8,13 +8,13 @@
   ],
   "files": {
     "solution": [
-      "HelloWorld.rakumod"
+      "lib/HelloWorld.rakumod"
     ],
     "test": [
-      "hello-world.rakutest"
+      "t/hello-world.rakutest"
     ],
     "example": [
-      ".meta/solutions/HelloWorld.rakumod"
+      ".meta/solutions/lib/HelloWorld.rakumod"
     ]
   },
   "blurb": "The classical introductory exercise. Just say \"Hello, World!\".",
diff --git a/exercises/practice/house/.meta/config.json b/exercises/practice/house/.meta/config.json
index b8ec54fe..84e1c6ed 100644
--- a/exercises/practice/house/.meta/config.json
+++ b/exercises/practice/house/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "House.rakumod"
+      "lib/House.rakumod"
     ],
     "test": [
-      "house.rakutest"
+      "t/house.rakutest"
     ],
     "example": [
-      ".meta/solutions/House.rakumod"
+      ".meta/solutions/lib/House.rakumod"
     ]
   },
   "blurb": "Output the nursery rhyme 'This is the House that Jack Built'.",
diff --git a/exercises/practice/isbn-verifier/.meta/config.json b/exercises/practice/isbn-verifier/.meta/config.json
index b5b18b34..b17d9a10 100644
--- a/exercises/practice/isbn-verifier/.meta/config.json
+++ b/exercises/practice/isbn-verifier/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "IsbnVerifier.rakumod"
+      "lib/IsbnVerifier.rakumod"
     ],
     "test": [
-      "isbn-verifier.rakutest"
+      "t/isbn-verifier.rakutest"
     ],
     "example": [
-      ".meta/solutions/IsbnVerifier.rakumod"
+      ".meta/solutions/lib/IsbnVerifier.rakumod"
     ]
   },
   "blurb": "Check if a given string is a valid ISBN-10 number.",
diff --git a/exercises/practice/isogram/.meta/config.json b/exercises/practice/isogram/.meta/config.json
index 16ddd89a..958b750d 100644
--- a/exercises/practice/isogram/.meta/config.json
+++ b/exercises/practice/isogram/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Isogram.rakumod"
+      "lib/Isogram.rakumod"
     ],
     "test": [
-      "isogram.rakutest"
+      "t/isogram.rakutest"
     ],
     "example": [
-      ".meta/solutions/Isogram.rakumod"
+      ".meta/solutions/lib/Isogram.rakumod"
     ]
   },
   "blurb": "Determine if a word or phrase is an isogram.",
diff --git a/exercises/practice/killer-sudoku-helper/.meta/config.json b/exercises/practice/killer-sudoku-helper/.meta/config.json
index 7ae48de0..bbe6f18d 100644
--- a/exercises/practice/killer-sudoku-helper/.meta/config.json
+++ b/exercises/practice/killer-sudoku-helper/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "KillerSudokuHelper.rakumod"
+      "lib/KillerSudokuHelper.rakumod"
     ],
     "test": [
-      "killer-sudoku-helper.rakutest"
+      "t/killer-sudoku-helper.rakutest"
     ],
     "example": [
-      ".meta/solutions/KillerSudokuHelper.rakumod"
+      ".meta/solutions/lib/KillerSudokuHelper.rakumod"
     ]
   },
   "blurb": "Write a tool that makes it easier to solve Killer Sudokus",
diff --git a/exercises/practice/largest-series-product/.meta/config.json b/exercises/practice/largest-series-product/.meta/config.json
index 4fd0f9f3..0e2f5748 100644
--- a/exercises/practice/largest-series-product/.meta/config.json
+++ b/exercises/practice/largest-series-product/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "LargestSeriesProduct.rakumod"
+      "lib/LargestSeriesProduct.rakumod"
     ],
     "test": [
-      "largest-series-product.rakutest"
+      "t/largest-series-product.rakutest"
     ],
     "example": [
-      ".meta/solutions/LargestSeriesProduct.rakumod"
+      ".meta/solutions/lib/LargestSeriesProduct.rakumod"
     ]
   },
   "blurb": "Given a string of digits, calculate the largest product for a contiguous substring of digits of length n.",
diff --git a/exercises/practice/leap/.meta/config.json b/exercises/practice/leap/.meta/config.json
index 46b98896..08e89982 100644
--- a/exercises/practice/leap/.meta/config.json
+++ b/exercises/practice/leap/.meta/config.json
@@ -12,13 +12,13 @@
   ],
   "files": {
     "solution": [
-      "Leap.rakumod"
+      "lib/Leap.rakumod"
     ],
     "test": [
-      "leap.rakutest"
+      "t/leap.rakutest"
     ],
     "example": [
-      ".meta/solutions/standard/Leap.rakumod"
+      ".meta/solutions/standard/lib/Leap.rakumod"
     ]
   },
   "blurb": "Given a year, report if it is a leap year.",
diff --git a/exercises/practice/linked-list/.meta/config.json b/exercises/practice/linked-list/.meta/config.json
index 25cfe5cf..a246f4b6 100644
--- a/exercises/practice/linked-list/.meta/config.json
+++ b/exercises/practice/linked-list/.meta/config.json
@@ -8,13 +8,13 @@
   ],
   "files": {
     "solution": [
-      "LinkedList.rakumod"
+      "lib/LinkedList.rakumod"
     ],
     "test": [
-      "linked-list.rakutest"
+      "t/linked-list.rakutest"
     ],
     "example": [
-      ".meta/solutions/LinkedList.rakumod"
+      ".meta/solutions/lib/LinkedList.rakumod"
     ]
   },
   "blurb": "Implement a doubly linked list.",
diff --git a/exercises/practice/luhn/.meta/config.json b/exercises/practice/luhn/.meta/config.json
index 0326c6cb..90f035d1 100644
--- a/exercises/practice/luhn/.meta/config.json
+++ b/exercises/practice/luhn/.meta/config.json
@@ -8,13 +8,13 @@
   ],
   "files": {
     "solution": [
-      "Luhn.rakumod"
+      "lib/Luhn.rakumod"
     ],
     "test": [
-      "luhn.rakutest"
+      "t/luhn.rakutest"
     ],
     "example": [
-      ".meta/solutions/Luhn.rakumod"
+      ".meta/solutions/lib/Luhn.rakumod"
     ]
   },
   "blurb": "Given a number determine whether or not it is valid per the Luhn formula.",
diff --git a/exercises/practice/matching-brackets/.meta/config.json b/exercises/practice/matching-brackets/.meta/config.json
index 4a1c0fc8..c148c6d2 100644
--- a/exercises/practice/matching-brackets/.meta/config.json
+++ b/exercises/practice/matching-brackets/.meta/config.json
@@ -5,13 +5,13 @@
   ],
   "files": {
     "solution": [
-      "MatchingBrackets.rakumod"
+      "lib/MatchingBrackets.rakumod"
     ],
     "test": [
-      "matching-brackets.rakutest"
+      "t/matching-brackets.rakutest"
     ],
     "example": [
-      ".meta/solutions/MatchingBrackets.rakumod"
+      ".meta/solutions/lib/MatchingBrackets.rakumod"
     ]
   },
   "blurb": "Make sure the brackets and braces all match.",
diff --git a/exercises/practice/matrix/.meta/config.json b/exercises/practice/matrix/.meta/config.json
index d9e2d3bf..44a69bf8 100644
--- a/exercises/practice/matrix/.meta/config.json
+++ b/exercises/practice/matrix/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Matrix.rakumod"
+      "lib/Matrix.rakumod"
     ],
     "test": [
-      "matrix.rakutest"
+      "t/matrix.rakutest"
     ],
     "example": [
-      ".meta/solutions/Matrix.rakumod"
+      ".meta/solutions/lib/Matrix.rakumod"
     ]
   },
   "blurb": "Given a string representing a matrix of numbers, return the rows and columns of that matrix.",
diff --git a/exercises/practice/meetup/.meta/config.json b/exercises/practice/meetup/.meta/config.json
index 09f2ce0e..4d1687ed 100644
--- a/exercises/practice/meetup/.meta/config.json
+++ b/exercises/practice/meetup/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Meetup.rakumod"
+      "lib/Meetup.rakumod"
     ],
     "test": [
-      "meetup.rakutest"
+      "t/meetup.rakutest"
     ],
     "example": [
-      ".meta/solutions/Meetup.rakumod"
+      ".meta/solutions/lib/Meetup.rakumod"
     ]
   },
   "blurb": "Calculate the date of meetups.",
diff --git a/exercises/practice/nucleotide-count/.meta/config.json b/exercises/practice/nucleotide-count/.meta/config.json
index b535be19..7799548e 100644
--- a/exercises/practice/nucleotide-count/.meta/config.json
+++ b/exercises/practice/nucleotide-count/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "NucleotideCount.rakumod"
+      "lib/NucleotideCount.rakumod"
     ],
     "test": [
-      "nucleotide-count.rakutest"
+      "t/nucleotide-count.rakutest"
     ],
     "example": [
-      ".meta/solutions/NucleotideCount.rakumod"
+      ".meta/solutions/lib/NucleotideCount.rakumod"
     ]
   },
   "blurb": "Given a DNA string, compute how many times each nucleotide occurs in the string.",
diff --git a/exercises/practice/pangram/.meta/config.json b/exercises/practice/pangram/.meta/config.json
index 0a7cc66e..51f066f5 100644
--- a/exercises/practice/pangram/.meta/config.json
+++ b/exercises/practice/pangram/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Pangram.rakumod"
+      "lib/Pangram.rakumod"
     ],
     "test": [
-      "pangram.rakutest"
+      "t/pangram.rakutest"
     ],
     "example": [
-      ".meta/solutions/Pangram.rakumod"
+      ".meta/solutions/lib/Pangram.rakumod"
     ]
   },
   "blurb": "Determine if a sentence is a pangram.",
diff --git a/exercises/practice/pascals-triangle/.meta/config.json b/exercises/practice/pascals-triangle/.meta/config.json
index 2b49a829..ccf72a4d 100644
--- a/exercises/practice/pascals-triangle/.meta/config.json
+++ b/exercises/practice/pascals-triangle/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "PascalsTriangle.rakumod"
+      "lib/PascalsTriangle.rakumod"
     ],
     "test": [
-      "pascals-triangle.rakutest"
+      "t/pascals-triangle.rakutest"
     ],
     "example": [
-      ".meta/solutions/PascalsTriangle.rakumod"
+      ".meta/solutions/lib/PascalsTriangle.rakumod"
     ]
   },
   "blurb": "Compute Pascal's triangle up to a given number of rows.",
diff --git a/exercises/practice/perfect-numbers/.meta/config.json b/exercises/practice/perfect-numbers/.meta/config.json
index 7479ad54..9dd95747 100644
--- a/exercises/practice/perfect-numbers/.meta/config.json
+++ b/exercises/practice/perfect-numbers/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "PerfectNumbers.rakumod"
+      "lib/PerfectNumbers.rakumod"
     ],
     "test": [
-      "perfect-numbers.rakutest"
+      "t/perfect-numbers.rakutest"
     ],
     "example": [
-      ".meta/solutions/PerfectNumbers.rakumod"
+      ".meta/solutions/lib/PerfectNumbers.rakumod"
     ]
   },
   "blurb": "Determine if a number is perfect, abundant, or deficient based on Nicomachus' (60 - 120 CE) classification scheme for positive integers.",
diff --git a/exercises/practice/phone-number/.meta/config.json b/exercises/practice/phone-number/.meta/config.json
index 2cee5ce9..295c553a 100644
--- a/exercises/practice/phone-number/.meta/config.json
+++ b/exercises/practice/phone-number/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "PhoneNumber.rakumod"
+      "lib/PhoneNumber.rakumod"
     ],
     "test": [
-      "phone-number.rakutest"
+      "t/phone-number.rakutest"
     ],
     "example": [
-      ".meta/solutions/PhoneNumber.rakumod"
+      ".meta/solutions/lib/PhoneNumber.rakumod"
     ]
   },
   "blurb": "Clean up user-entered phone numbers so that they can be sent SMS messages.",
diff --git a/exercises/practice/prime-factors/.meta/config.json b/exercises/practice/prime-factors/.meta/config.json
index d65b99e9..abd4ee51 100644
--- a/exercises/practice/prime-factors/.meta/config.json
+++ b/exercises/practice/prime-factors/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "PrimeFactors.rakumod"
+      "lib/PrimeFactors.rakumod"
     ],
     "test": [
-      "prime-factors.rakutest"
+      "t/prime-factors.rakutest"
     ],
     "example": [
-      ".meta/solutions/PrimeFactors.rakumod"
+      ".meta/solutions/lib/PrimeFactors.rakumod"
     ]
   },
   "blurb": "Compute the prime factors of a given natural number.",
diff --git a/exercises/practice/pythagorean-triplet/.meta/config.json b/exercises/practice/pythagorean-triplet/.meta/config.json
index 000d92d6..f9e853d5 100644
--- a/exercises/practice/pythagorean-triplet/.meta/config.json
+++ b/exercises/practice/pythagorean-triplet/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "PythagoreanTriplet.rakumod"
+      "lib/PythagoreanTriplet.rakumod"
     ],
     "test": [
-      "pythagorean-triplet.rakutest"
+      "t/pythagorean-triplet.rakutest"
     ],
     "example": [
-      ".meta/solutions/PythagoreanTriplet.rakumod"
+      ".meta/solutions/lib/PythagoreanTriplet.rakumod"
     ]
   },
   "blurb": "There exists exactly one Pythagorean triplet for which a + b + c = 1000. Find the product a * b * c.",
diff --git a/exercises/practice/queen-attack/.meta/config.json b/exercises/practice/queen-attack/.meta/config.json
index 04321ed1..b3ee9fd9 100644
--- a/exercises/practice/queen-attack/.meta/config.json
+++ b/exercises/practice/queen-attack/.meta/config.json
@@ -5,13 +5,13 @@
   ],
   "files": {
     "solution": [
-      "Queen.rakumod"
+      "lib/Queen.rakumod"
     ],
     "test": [
-      "queen-attack.rakutest"
+      "t/queen-attack.rakutest"
     ],
     "example": [
-      ".meta/solutions/Queen.rakumod"
+      ".meta/solutions/lib/Queen.rakumod"
     ]
   },
   "blurb": "Given the position of two queens on a chess board, indicate whether or not they are positioned so that they can attack each other.",
diff --git a/exercises/practice/raindrops/.meta/config.json b/exercises/practice/raindrops/.meta/config.json
index bd1adf1d..0707b795 100644
--- a/exercises/practice/raindrops/.meta/config.json
+++ b/exercises/practice/raindrops/.meta/config.json
@@ -9,13 +9,13 @@
   ],
   "files": {
     "solution": [
-      "Raindrops.rakumod"
+      "lib/Raindrops.rakumod"
     ],
     "test": [
-      "raindrops.rakutest"
+      "t/raindrops.rakutest"
     ],
     "example": [
-      ".meta/solutions/Raindrops.rakumod"
+      ".meta/solutions/lib/Raindrops.rakumod"
     ]
   },
   "blurb": "Convert a number to a string, the content of which depends on the number's factors.",
diff --git a/exercises/practice/resistor-color-duo/.meta/config.json b/exercises/practice/resistor-color-duo/.meta/config.json
index be0c4dd3..fea9b931 100644
--- a/exercises/practice/resistor-color-duo/.meta/config.json
+++ b/exercises/practice/resistor-color-duo/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "ResistorColorDuo.rakumod"
+      "lib/ResistorColorDuo.rakumod"
     ],
     "test": [
-      "resistor-color-duo.rakutest"
+      "t/resistor-color-duo.rakutest"
     ],
     "example": [
-      ".meta/solutions/ResistorColorDuo.rakumod"
+      ".meta/solutions/lib/ResistorColorDuo.rakumod"
     ]
   },
   "blurb": "Convert color codes, as used on resistors, to a numeric value.",
diff --git a/exercises/practice/resistor-color-trio/.meta/config.json b/exercises/practice/resistor-color-trio/.meta/config.json
index efd52167..5e47eab4 100644
--- a/exercises/practice/resistor-color-trio/.meta/config.json
+++ b/exercises/practice/resistor-color-trio/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "ResistorColorTrio.rakumod"
+      "lib/ResistorColorTrio.rakumod"
     ],
     "test": [
-      "resistor-color-trio.rakutest"
+      "t/resistor-color-trio.rakutest"
     ],
     "example": [
-      ".meta/solutions/ResistorColorTrio.rakumod"
+      ".meta/solutions/lib/ResistorColorTrio.rakumod"
     ]
   },
   "blurb": "Convert color codes, as used on resistors, to a human-readable label.",
diff --git a/exercises/practice/resistor-color/.meta/config.json b/exercises/practice/resistor-color/.meta/config.json
index ff7c0913..d917e497 100644
--- a/exercises/practice/resistor-color/.meta/config.json
+++ b/exercises/practice/resistor-color/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "ResistorColor.rakumod"
+      "lib/ResistorColor.rakumod"
     ],
     "test": [
-      "resistor-color.rakutest"
+      "t/resistor-color.rakutest"
     ],
     "example": [
-      ".meta/solutions/ResistorColor.rakumod"
+      ".meta/solutions/lib/ResistorColor.rakumod"
     ]
   },
   "blurb": "Convert a resistor band's color to its numeric representation.",
diff --git a/exercises/practice/reverse-string/.meta/config.json b/exercises/practice/reverse-string/.meta/config.json
index 4901b6fc..56abf94d 100644
--- a/exercises/practice/reverse-string/.meta/config.json
+++ b/exercises/practice/reverse-string/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "ReverseString.rakumod"
+      "lib/ReverseString.rakumod"
     ],
     "test": [
-      "reverse-string.rakutest"
+      "t/reverse-string.rakutest"
     ],
     "example": [
-      ".meta/solutions/ReverseString.rakumod"
+      ".meta/solutions/lib/ReverseString.rakumod"
     ]
   },
   "blurb": "Reverse a string.",
diff --git a/exercises/practice/rna-transcription/.meta/config.json b/exercises/practice/rna-transcription/.meta/config.json
index 0e805774..5d1260f5 100644
--- a/exercises/practice/rna-transcription/.meta/config.json
+++ b/exercises/practice/rna-transcription/.meta/config.json
@@ -10,13 +10,13 @@
   ],
   "files": {
     "solution": [
-      "RNA.rakumod"
+      "lib/RNA.rakumod"
     ],
     "test": [
-      "rna-transcription.rakutest"
+      "t/rna-transcription.rakutest"
     ],
     "example": [
-      ".meta/solutions/RNA.rakumod"
+      ".meta/solutions/lib/RNA.rakumod"
     ]
   },
   "blurb": "Given a DNA strand, return its RNA Complement Transcription.",
diff --git a/exercises/practice/robot-name/.meta/config.json b/exercises/practice/robot-name/.meta/config.json
index ab149552..78d32855 100644
--- a/exercises/practice/robot-name/.meta/config.json
+++ b/exercises/practice/robot-name/.meta/config.json
@@ -10,13 +10,13 @@
   ],
   "files": {
     "solution": [
-      "Robot.rakumod"
+      "lib/Robot.rakumod"
     ],
     "test": [
-      "robot-name.rakutest"
+      "t/robot-name.rakutest"
     ],
     "example": [
-      ".meta/solutions/Robot.rakumod"
+      ".meta/solutions/lib/Robot.rakumod"
     ]
   },
   "blurb": "Manage robot factory settings.",
diff --git a/exercises/practice/roman-numerals/.meta/config.json b/exercises/practice/roman-numerals/.meta/config.json
index 40afff42..d2993b6b 100644
--- a/exercises/practice/roman-numerals/.meta/config.json
+++ b/exercises/practice/roman-numerals/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "RomanNumerals.rakumod"
+      "lib/RomanNumerals.rakumod"
     ],
     "test": [
-      "roman-numerals.rakutest"
+      "t/roman-numerals.rakutest"
     ],
     "example": [
-      ".meta/solutions/RomanNumerals.rakumod"
+      ".meta/solutions/lib/RomanNumerals.rakumod"
     ]
   },
   "blurb": "Write a function to convert from normal numbers to Roman Numerals.",
diff --git a/exercises/practice/rotational-cipher/.meta/config.json b/exercises/practice/rotational-cipher/.meta/config.json
index 498a4ae1..af0145d3 100644
--- a/exercises/practice/rotational-cipher/.meta/config.json
+++ b/exercises/practice/rotational-cipher/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "RotationalCipher.rakumod"
+      "lib/RotationalCipher.rakumod"
     ],
     "test": [
-      "rotational-cipher.rakutest"
+      "t/rotational-cipher.rakutest"
     ],
     "example": [
-      ".meta/solutions/RotationalCipher.rakumod"
+      ".meta/solutions/lib/RotationalCipher.rakumod"
     ]
   },
   "blurb": "Create an implementation of the rotational cipher, also sometimes called the Caesar cipher.",
diff --git a/exercises/practice/scrabble-score/.meta/config.json b/exercises/practice/scrabble-score/.meta/config.json
index e3278042..599389e8 100644
--- a/exercises/practice/scrabble-score/.meta/config.json
+++ b/exercises/practice/scrabble-score/.meta/config.json
@@ -10,13 +10,13 @@
   ],
   "files": {
     "solution": [
-      "Scrabble.rakumod"
+      "lib/Scrabble.rakumod"
     ],
     "test": [
-      "scrabble-score.rakutest"
+      "t/scrabble-score.rakutest"
     ],
     "example": [
-      ".meta/solutions/Scrabble.rakumod"
+      ".meta/solutions/lib/Scrabble.rakumod"
     ]
   },
   "blurb": "Given a word, compute the Scrabble score for that word.",
diff --git a/exercises/practice/secret-handshake/.meta/config.json b/exercises/practice/secret-handshake/.meta/config.json
index 363b7b65..f761a418 100644
--- a/exercises/practice/secret-handshake/.meta/config.json
+++ b/exercises/practice/secret-handshake/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "SecretHandshake.rakumod"
+      "lib/SecretHandshake.rakumod"
     ],
     "test": [
-      "secret-handshake.rakutest"
+      "t/secret-handshake.rakutest"
     ],
     "example": [
-      ".meta/solutions/SecretHandshake.rakumod"
+      ".meta/solutions/lib/SecretHandshake.rakumod"
     ]
   },
   "blurb": "Given a decimal number, convert it to the appropriate sequence of events for a secret handshake.",
diff --git a/exercises/practice/series/.meta/config.json b/exercises/practice/series/.meta/config.json
index 9c3229d6..f3a68e4e 100644
--- a/exercises/practice/series/.meta/config.json
+++ b/exercises/practice/series/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Series.rakumod"
+      "lib/Series.rakumod"
     ],
     "test": [
-      "series.rakutest"
+      "t/series.rakutest"
     ],
     "example": [
-      ".meta/solutions/Series.rakumod"
+      ".meta/solutions/lib/Series.rakumod"
     ]
   },
   "blurb": "Given a string of digits, output all the contiguous substrings of length `n` in that string.",
diff --git a/exercises/practice/sieve/.meta/config.json b/exercises/practice/sieve/.meta/config.json
index 0d909a6e..22a61d44 100644
--- a/exercises/practice/sieve/.meta/config.json
+++ b/exercises/practice/sieve/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Sieve.rakumod"
+      "lib/Sieve.rakumod"
     ],
     "test": [
-      "sieve.rakutest"
+      "t/sieve.rakutest"
     ],
     "example": [
-      ".meta/solutions/Sieve.rakumod"
+      ".meta/solutions/lib/Sieve.rakumod"
     ]
   },
   "blurb": "Use the Sieve of Eratosthenes to find all the primes from 2 up to a given number.",
diff --git a/exercises/practice/space-age/.meta/config.json b/exercises/practice/space-age/.meta/config.json
index 13389b56..2e926fb0 100644
--- a/exercises/practice/space-age/.meta/config.json
+++ b/exercises/practice/space-age/.meta/config.json
@@ -8,13 +8,13 @@
   ],
   "files": {
     "solution": [
-      "SpaceAge.rakumod"
+      "lib/SpaceAge.rakumod"
     ],
     "test": [
-      "space-age.rakutest"
+      "t/space-age.rakutest"
     ],
     "example": [
-      ".meta/solutions/SpaceAge.rakumod"
+      ".meta/solutions/lib/SpaceAge.rakumod"
     ]
   },
   "blurb": "Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.",
diff --git a/exercises/practice/square-root/.meta/config.json b/exercises/practice/square-root/.meta/config.json
index 3777d4d2..9f93462a 100644
--- a/exercises/practice/square-root/.meta/config.json
+++ b/exercises/practice/square-root/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "SquareRoot.rakumod"
+      "lib/SquareRoot.rakumod"
     ],
     "test": [
-      "square-root.rakutest"
+      "t/square-root.rakutest"
     ],
     "example": [
-      ".meta/solutions/SquareRoot.rakumod"
+      ".meta/solutions/lib/SquareRoot.rakumod"
     ]
   },
   "blurb": "Given a natural radicand, return its square root.",
diff --git a/exercises/practice/strain/.meta/config.json b/exercises/practice/strain/.meta/config.json
index c460d00b..615a00ff 100644
--- a/exercises/practice/strain/.meta/config.json
+++ b/exercises/practice/strain/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Strain.rakumod"
+      "lib/Strain.rakumod"
     ],
     "test": [
-      "strain.rakutest"
+      "t/strain.rakutest"
     ],
     "example": [
-      ".meta/solutions/Strain.rakumod"
+      ".meta/solutions/lib/Strain.rakumod"
     ]
   },
   "blurb": "Implement the `keep` and `discard` operation on collections. Given a collection and a predicate on the collection's elements, `keep` returns a new collection containing those elements where the predicate is true, while `discard` returns a new collection containing those elements where the predicate is false.",
diff --git a/exercises/practice/sublist/.meta/config.json b/exercises/practice/sublist/.meta/config.json
index d1ec6892..2bfc3874 100644
--- a/exercises/practice/sublist/.meta/config.json
+++ b/exercises/practice/sublist/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Sublist.rakumod"
+      "lib/Sublist.rakumod"
     ],
     "test": [
-      "sublist.rakutest"
+      "t/sublist.rakutest"
     ],
     "example": [
-      ".meta/solutions/Sublist.rakumod"
+      ".meta/solutions/lib/Sublist.rakumod"
     ]
   },
   "blurb": "Write a function to determine if a list is a sublist of another list."
diff --git a/exercises/practice/sum-of-multiples/.meta/config.json b/exercises/practice/sum-of-multiples/.meta/config.json
index c548ecf5..42d4e08b 100644
--- a/exercises/practice/sum-of-multiples/.meta/config.json
+++ b/exercises/practice/sum-of-multiples/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "SumOfMultiples.rakumod"
+      "lib/SumOfMultiples.rakumod"
     ],
     "test": [
-      "sum-of-multiples.rakutest"
+      "t/sum-of-multiples.rakutest"
     ],
     "example": [
-      ".meta/solutions/SumOfMultiples.rakumod"
+      ".meta/solutions/lib/SumOfMultiples.rakumod"
     ]
   },
   "blurb": "Given a number, find the sum of all the multiples of particular numbers up to but not including that number.",
diff --git a/exercises/practice/transpose/.meta/config.json b/exercises/practice/transpose/.meta/config.json
index c16c419d..49d25a4e 100644
--- a/exercises/practice/transpose/.meta/config.json
+++ b/exercises/practice/transpose/.meta/config.json
@@ -5,13 +5,13 @@
   ],
   "files": {
     "solution": [
-      "Transpose.rakumod"
+      "lib/Transpose.rakumod"
     ],
     "test": [
-      "transpose.rakutest"
+      "t/transpose.rakutest"
     ],
     "example": [
-      ".meta/solutions/Transpose.rakumod"
+      ".meta/solutions/lib/Transpose.rakumod"
     ]
   },
   "blurb": "Take input text and output it transposed.",
diff --git a/exercises/practice/triangle/.meta/config.json b/exercises/practice/triangle/.meta/config.json
index ad14faf6..4654f8ce 100644
--- a/exercises/practice/triangle/.meta/config.json
+++ b/exercises/practice/triangle/.meta/config.json
@@ -4,13 +4,13 @@
   ],
   "files": {
     "solution": [
-      "Triangle.rakumod"
+      "lib/Triangle.rakumod"
     ],
     "test": [
-      "triangle.rakutest"
+      "t/triangle.rakutest"
     ],
     "example": [
-      ".meta/solutions/Triangle.rakumod"
+      ".meta/solutions/lib/Triangle.rakumod"
     ]
   },
   "blurb": "Determine if a triangle is equilateral, isosceles, or scalene.",
diff --git a/exercises/practice/two-fer/.meta/config.json b/exercises/practice/two-fer/.meta/config.json
index a8638dfd..1ac07618 100644
--- a/exercises/practice/two-fer/.meta/config.json
+++ b/exercises/practice/two-fer/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "TwoFer.rakumod"
+      "lib/TwoFer.rakumod"
     ],
     "test": [
-      "two-fer.rakutest"
+      "t/two-fer.rakutest"
     ],
     "example": [
-      ".meta/solutions/TwoFer.rakumod"
+      ".meta/solutions/lib/TwoFer.rakumod"
     ]
   },
   "blurb": "Create a sentence of the form \"One for X, one for me.\".",
diff --git a/exercises/practice/word-count/.meta/config.json b/exercises/practice/word-count/.meta/config.json
index e605e36e..7c391bfe 100644
--- a/exercises/practice/word-count/.meta/config.json
+++ b/exercises/practice/word-count/.meta/config.json
@@ -11,13 +11,13 @@
   ],
   "files": {
     "solution": [
-      "WordCount.rakumod"
+      "lib/WordCount.rakumod"
     ],
     "test": [
-      "word-count.rakutest"
+      "t/word-count.rakutest"
     ],
     "example": [
-      ".meta/solutions/WordCount.rakumod"
+      ".meta/solutions/lib/WordCount.rakumod"
     ]
   },
   "blurb": "Given a phrase, count the occurrences of each word in that phrase.",
diff --git a/exercises/practice/wordy/.meta/config.json b/exercises/practice/wordy/.meta/config.json
index 2fb70c68..dbc11b89 100644
--- a/exercises/practice/wordy/.meta/config.json
+++ b/exercises/practice/wordy/.meta/config.json
@@ -8,13 +8,13 @@
   ],
   "files": {
     "solution": [
-      "Wordy.rakumod"
+      "lib/Wordy.rakumod"
     ],
     "test": [
-      "wordy.rakutest"
+      "t/wordy.rakutest"
     ],
     "example": [
-      ".meta/solutions/Wordy.rakumod"
+      ".meta/solutions/lib/Wordy.rakumod"
     ]
   },
   "blurb": "Parse and evaluate simple math word problems returning the answer as an integer.",
diff --git a/exercises/practice/yacht/.meta/config.json b/exercises/practice/yacht/.meta/config.json
index f032e2cc..5722fae7 100644
--- a/exercises/practice/yacht/.meta/config.json
+++ b/exercises/practice/yacht/.meta/config.json
@@ -7,13 +7,13 @@
   ],
   "files": {
     "solution": [
-      "Yacht.rakumod"
+      "lib/Yacht.rakumod"
     ],
     "test": [
-      "yacht.rakutest"
+      "t/yacht.rakutest"
     ],
     "example": [
-      ".meta/solutions/Yacht.rakumod"
+      ".meta/solutions/lib/Yacht.rakumod"
     ]
   },
   "blurb": "Score a single throw of dice in the game Yacht.",