diff --git a/dotfiles/lib/bin/fences_problem.hs b/dotfiles/lib/bin/fences_problem.hs
deleted file mode 100755
index d5ac432c..00000000
--- a/dotfiles/lib/bin/fences_problem.hs
+++ /dev/null
@@ -1,77 +0,0 @@
-#!/usr/bin/env run_haskell_stack.sh
-{-# LANGUAGE OverloadedStrings, AllowAmbiguousTypes #-}
-
-import Data.Stack
-import Data.Maybe
-import Debug.Trace
-
-data ProblemState = ProblemState
-  { maxValue :: Int
-  , maxHeight :: Int
-  , maxStartIndex :: Int
-  , maxEndIndex :: Int
-  , heightStartStack :: Stack (Int, Int)
-  } deriving Show
-
-stackPeekDef theStack = fromMaybe (0, 0) $ stackPeek theStack
-
-processItem index problemState =
-  let (newStack, (itemIndex, itemHeight)) =
-        fromMaybe (stackNew, (0, 0)) $ stackPop $ heightStartStack problemState
-      rectSize = (index - itemIndex) * itemHeight
-  in if rectSize > (maxValue problemState)
-     then problemState
-            { maxValue = rectSize
-            , maxHeight = itemHeight
-            , maxStartIndex = itemIndex
-            , maxEndIndex = index
-            , heightStartStack = newStack
-            }
-     else problemState { heightStartStack = newStack }
-
-processFenceHeight _ [] problemState = problemState
-processFenceHeight index allHeights@(height:heights) problemState =
-  let hss = heightStartStack problemState
-      (lastIndex, lastHeight) = stackPeekDef hss
-      handleTaller = processFenceHeight (index + 1) heights $
-                     problemState
-                     { heightStartStack = stackPush hss (index, height) }
-      handleShorter = let withNewMax = processItem index problemState
-                          newProblemState =
-                            withNewMax
-                             { heightStartStack =
-                                 addIfLarger (heightStartStack withNewMax)
-                                             (height, lastIndex)
-                             }
-                      -- No increment because we may need to pop more off of the stack
-                      in processFenceHeight index allHeights newProblemState
-      addIfLarger theStack (index, height) =
-        let (thisIndex, thisHeight) = stackPeekDef theStack
-        in if thisHeight < height
-           then stackPush theStack (index, height)
-           else theStack
-  in case lastHeight of
-       _ | lastHeight < height -> handleTaller
-       _ | lastHeight > height -> handleShorter
-       _ -> processFenceHeight (index + 1) heights problemState
-
-processFences fences =
-  let lastState = processFenceHeight 0 fences
-                  ProblemState { maxValue = -1
-                               , maxHeight = -1
-                               , maxStartIndex = -1
-                               , maxEndIndex = -1
-                               , heightStartStack = stackNew
-                               }
-      fenceCount = length fences
-      processItems state
-        | stackIsEmpty (heightStartStack state) = state
-        | otherwise = processItems $ processItem fenceCount state
-  in processItems lastState
-
-main = do
-  let finalState = processFences [2, 4, 6, 6, 6, 7, 6, 2, 2, 2, 2, 2, 2, 2]
-  print $ maxValue finalState
-  print $ maxHeight finalState
-  print $ maxStartIndex finalState
-  print $ maxEndIndex finalState
diff --git a/dotfiles/lib/bin/knightDeltas.hs b/dotfiles/lib/bin/knightDeltas.hs
deleted file mode 100755
index 196d53d3..00000000
--- a/dotfiles/lib/bin/knightDeltas.hs
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env run_haskell_stack.sh
-
-import Data.Bifunctor
-import Data.Tuple
-
-knightDeltasSimple =
-  applyAll [swap] (1, 2)
-  >>= applyAll [first negate, second negate, bimapBoth negate]
-  where applyAll fns v = map ($ v) $ id:fns
-        bimapBoth fn = bimap fn fn
-
-knightDeltas = applyInStages [(1, 2)]
-               [ [swap]
-               , [bimapBoth (* 2)]
-               , [first negate, second negate, bimapBoth negate]
-               ]
-  where applyAll fns v = map ($ v) $ id:fns
-        applyAllToValues values fns = values >>= applyAll fns
-        applyInStages = foldl applyAllToValues
-        bimapBoth fn = bimap fn fn
-
-main = print knightDeltas
diff --git a/dotfiles/lib/bin/macbook_brightness.py b/dotfiles/lib/bin/macbook_brightness.py
deleted file mode 100755
index 0efd77ba..00000000
--- a/dotfiles/lib/bin/macbook_brightness.py
+++ /dev/null
@@ -1,75 +0,0 @@
-#!/usr/bin/env python
-import argparse
-import os
-import sys
-
-
-class BrightnessManager(object):
-
-    @classmethod
-    def from_path(cls, path):
-        return cls(
-            set_brightness_filepath=os.path.join(path, "brightness"),
-            actual_brightness_filepath=os.path.join(path, "actual_brightness"),
-            max_brightness_filepath=os.path.join(path, "max_brightness"),
-        )
-
-    def __init__(
-            self, set_brightness_filepath, max_brightness_filepath, actual_brightness_filepath
-    ):
-        self.set_brightness_filepath = set_brightness_filepath
-        self.max_brightness_filepath = max_brightness_filepath
-        self.actual_brightness_filepath = actual_brightness_filepath
-
-    @property
-    def current_brightness(self):
-        with open(self.actual_brightness_filepath) as fd:
-            return int(fd.read())
-
-    @property
-    def max_brightness(self):
-        with open(self.max_brightness_filepath) as fd:
-            return int(fd.read())
-
-    @current_brightness.setter
-    def current_brightness(self, brightness):
-        with open(self.set_brightness_filepath, 'w') as fd:
-            fd.write(str(brightness))
-
-    def increment_by_proportion(self, proportion):
-        new_brightness = self.current_brightness + int(self.max_brightness * proportion)
-        new_brightness = min(new_brightness, self.max_brightness)
-        self.current_brightness = new_brightness
-
-    @property
-    def current_proportion(self):
-        return float(self.current_brightness) / self.max_brightness
-
-
-IntelBrightnessManager = BrightnessManager.from_path(
-    "/sys/class/backlight/intel_backlight",
-)
-
-
-def build_parser():
-    parser = argparse.ArgumentParser(
-        description='Interact with macbook brightness',
-    )
-    parser.add_argument(
-        "--change", "-c",
-        help="Change volume by the given percentage",
-        default=0
-    )
-    parser.add_argument(
-        "--print", "-p", dest="do_print",
-        action='store_true',
-        default=False
-    )
-    return parser
-
-
-if __name__ == '__main__':
-    args = build_parser().parse_args()
-    IntelBrightnessManager.increment_by_proportion(float(args.change) / 100)
-    if args.do_print:
-        print(int(IntelBrightnessManager.current_proportion * 100))