diff --git a/.gitignore b/.gitignore
index 341caa6..2c1edb8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 /report.pdf
 /result
-/.pre-commit-config.yaml
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
deleted file mode 100644
index 3de5073..0000000
--- a/.markdownlint.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-default: true
-
-# I use top-level titles for each section
-MD025: false
diff --git a/flake.lock b/flake.lock
index efff0aa..b84cf74 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,65 +2,38 @@
   "nodes": {
     "futils": {
       "locked": {
-        "lastModified": 1623875721,
-        "narHash": "sha256-A8BU7bjS5GirpAUv4QA+QnJ4CceLHkcXdRp4xITDB0s=",
+        "lastModified": 1618868421,
+        "narHash": "sha256-vyoJhLV6cJ8/tWz+l9HZLIkb9Rd9esE7p+0RL6zDR6Y=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "f7e004a55b120c02ecb6219596820fcd32ca8772",
+        "rev": "eed214942bcfb3a8cc09eb3b28ca7d7221e44a94",
         "type": "github"
       },
       "original": {
         "owner": "numtide",
-        "ref": "master",
         "repo": "flake-utils",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1626764163,
-        "narHash": "sha256-TB+mtRpwn6pnoUXjBvJPIgHKkwLtjzFji4tkANlZWJQ=",
+        "lastModified": 1619180214,
+        "narHash": "sha256-wt1uDD9RAxc3wdWOQp8zM3+ZyLb2rbnGIeaIuXGzw80=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1441fa74d213d7cc120d9d7d49e540c1fc59bc58",
+        "rev": "112a3b08e9bcffa58e0f79af0072fc8273933b87",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
-    "pre-commit-hooks": {
-      "inputs": {
-        "flake-utils": [
-          "futils"
-        ],
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1624971177,
-        "narHash": "sha256-Amf/nBj1E77RmbSSmV+hg6YOpR+rddCbbVgo5C7BS0I=",
-        "owner": "cachix",
-        "repo": "pre-commit-hooks.nix",
-        "rev": "397f0713d007250a2c7a745e555fa16c5dc8cadb",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "ref": "master",
-        "repo": "pre-commit-hooks.nix",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "futils": "futils",
-        "nixpkgs": "nixpkgs",
-        "pre-commit-hooks": "pre-commit-hooks"
+        "nixpkgs": "nixpkgs"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 10916bd..1bdafcf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,34 +2,12 @@
   description = "Ambroisie's CV";
 
   inputs = {
-    futils = {
-      type = "github";
-      owner = "numtide";
-      repo = "flake-utils";
-      ref = "master";
-    };
-
-    nixpkgs = {
-      type = "github";
-      owner = "NixOS";
-      repo = "nixpkgs";
-      ref = "nixpkgs-unstable";
-    };
-
-    pre-commit-hooks = {
-      type = "github";
-      owner = "cachix";
-      repo = "pre-commit-hooks.nix";
-      ref = "master";
-      inputs = {
-        flake-utils.follows = "futils";
-        nixpkgs.follows = "nixpkgs";
-      };
-    };
+    nixpkgs.url = "github:NixOS/nixpkgs";
+    futils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, futils, nixpkgs, pre-commit-hooks } @ inputs:
-    futils.lib.eachDefaultSystem (system:
+  outputs = { self, nixpkgs, futils } @ inputs:
+    futils.lib.eachSystem futils.lib.allSystems (system:
       let
         inherit (nixpkgs) lib;
         pkgs = nixpkgs.legacyPackages.${system};
@@ -38,46 +16,19 @@
           pandoc
           (texlive.combine {
             inherit (texlive)
-              scheme-small
-              # Extra packages needed
-              changepage
-              enumitem
-              placeins
-              ;
+            scheme-small
+            # Extra packages needed
+            changepage
+            enumitem
+            placeins
+            ;
           })
         ];
       in
       {
-        checks = {
-          pre-commit = pre-commit-hooks.lib.${system}.run {
-            src = ./.;
-
-            hooks = {
-              nixpkgs-fmt = {
-                enable = true;
-              };
-
-              markdown-lint = {
-                enable = true;
-
-                name = "Lint each post's markdown";
-
-                entry =
-                  let
-                    pkg = pkgs.nodePackages.markdownlint-cli;
-                  in
-                  "${pkg}/bin/markdownlint";
-
-                types = [ "markdown" ];
-              };
-            };
-          };
-        };
-
         devShell = pkgs.mkShell {
           name = "report";
           inherit buildInputs;
-          inherit (self.checks.${system}.pre-commit) shellHook;
         };
 
         defaultPackage = pkgs.stdenvNoCC.mkDerivation {
diff --git a/report.md b/report.md
index d3adf87..6fa3e74 100644
--- a/report.md
+++ b/report.md
@@ -457,25 +457,6 @@ expect few places to be as well-rounded as IMC.
 
 # Appendix
 
-## Vocabulary
-
-Market-making
-
-: A market-maker provides liquidity to the market by continuously quoting both
-sell and trade prices on the market, hoping to make a profit on the *bid-ask
-spread*.
-
-Bid and ask
-
-: Respectively the price for buying and selling a stock or other financial
-instrument. The closer the spread of the two prices is, the more liquidity there
-is in the market for that product.
-
-Continuous Integration
-
-: The practice of automating the integration of code from multiple contributors
-into a single software project.
-
 ## About IMC
 
 International Marketmakers Combinations (IMC) was founded in 1989 in Amsterdam,