diff --git a/lib/xgit.ex b/lib/xgit.ex
index 8e46739..3a40afb 100644
--- a/lib/xgit.ex
+++ b/lib/xgit.ex
@@ -9,13 +9,6 @@ defmodule Xgit do
   """
   @impl true
   def start(_type, _args) do
-    children = [
-      {ConCache,
-       name: :xgit_file_snapshot,
-       ttl_check_interval: :timer.seconds(1),
-       global_ttl: :timer.seconds(5)}
-    ]
-
-    Supervisor.start_link(children, strategy: :one_for_one)
+    Supervisor.start_link([], strategy: :one_for_one)
   end
 end
diff --git a/lib/xgit/util/file_snapshot.ex b/lib/xgit/util/file_snapshot.ex
deleted file mode 100644
index e054eed..0000000
--- a/lib/xgit/util/file_snapshot.ex
+++ /dev/null
@@ -1,237 +0,0 @@
-# Copyright (C) 2010, Google Inc.
-# and other copyright owners as documented in the project's IP log.
-#
-# Elixir adaptation from jgit file:
-# org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileSnapshot.java
-#
-# Copyright (C) 2019, Eric Scouten <eric+xgit@scouten.com>
-#
-# This program and the accompanying materials are made available
-# under the terms of the Eclipse Distribution License v1.0 which
-# accompanies this distribution, is reproduced below, and is
-# available at http://www.eclipse.org/org/documents/edl-v10.php
-#
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or
-# without modification, are permitted provided that the following
-# conditions are met:
-#
-# - Redistributions of source code must retain the above copyright
-#   notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above
-#   copyright notice, this list of conditions and the following
-#   disclaimer in the documentation and/or other materials provided
-#   with the distribution.
-#
-# - Neither the name of the Eclipse Foundation, Inc. nor the
-#   names of its contributors may be used to endorse or promote
-#   products derived from this software without specific prior
-#   written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-defmodule Xgit.Util.FileSnapshot do
-  @moduledoc false
-  # Caches when a file was last read, making it possible to detect future edits.
-
-  # This object tracks the last modified time of a file. Later during an
-  # invocation of `modified?/2` the object will return `true` if the file may have
-  # been modified and should be re-read from disk.
-
-  # A snapshot does not "live update" when the underlying filesystem changes.
-  # Callers must poll for updates by periodically invoking `modified?/2`.
-
-  # To work around the "racy git" problem (where a file may be modified multiple
-  # times within the granularity of the filesystem modification clock) this class
-  # may return `true` from `modified?/2` if the last modification time of the
-  # file is less than 3 seconds ago.
-
-  import Xgit.Util.ForceCoverage
-
-  @typedoc ~S"""
-  Cache for when a file was last saved.
-
-  ## Struct Members
-
-  * `last_modified`: Last observed modification time of the path.
-  * `ref`: Reference into a cache for when this file was last read.
-  """
-  @type t :: %__MODULE__{last_modified: integer | :missing | :dirty, ref: reference | nil}
-
-  @enforce_keys [:last_modified, :ref]
-  defstruct [:last_modified, :ref]
-
-  @doc ~S"""
-  An `Xgit.Util.FileSnapshot` that is considered to always be modified.
-
-  This instance is useful for application code that wants to lazily read a
-  file, but only after `modified?/2` gets invoked. This snapshot instance
-  contains only invalid status information.
-  """
-  @spec dirty() :: t
-  def dirty, do: %__MODULE__{last_modified: :dirty, ref: nil}
-
-  @doc ~S"""
-  An `Xgit.Util.FileSnapshot` that is clean if the file does not exist.
-
-  This instance is useful if the application wants to consider a missing
-  file to be clean. `modified?/2` will return `false` if the file path
-  does not exist.
-  """
-  @spec missing_file :: t
-  def missing_file, do: %__MODULE__{last_modified: :missing, ref: nil}
-
-  @doc ~S"""
-  Record a snapshot for a specific file path.
-
-  This function should be invoked before the file is accessed.
-  """
-  @spec save(path :: Path.t()) :: t
-  def save(path) when is_binary(path) do
-    last_modified = last_modified_time(path)
-
-    ref = make_ref()
-    record_time_for_ref(ref)
-
-    %__MODULE__{last_modified: last_modified, ref: ref}
-  end
-
-  @doc ~S"""
-  Return `true` if the path may have been modified since the snapshot was saved.
-  """
-  @spec modified?(snapshot :: t, path :: Path.t()) :: boolean
-  def modified?(%__MODULE__{last_modified: last_modified, ref: ref}, path)
-      when is_binary(path) and is_integer(last_modified) and is_reference(ref) do
-    curr_last_modified = last_modified_time(path)
-    modified_impl?(curr_last_modified, last_modified, ref)
-  end
-
-  def modified?(%__MODULE__{last_modified: :dirty}, _path), do: cover(true)
-  def modified?(%__MODULE__{last_modified: :missing}, path), do: File.exists?(path)
-
-  defp last_modified_time(path) when is_binary(path) do
-    path
-    |> File.stat!(time: :posix)
-    |> extract_last_modified_time()
-  end
-
-  defp extract_last_modified_time(%{mtime: lmt}) when is_integer(lmt), do: lmt
-
-  @doc ~S"""
-  Update this snapshot when the content hasn't changed.
-
-  If the caller gets `true` from `modified?/2`, re-reads the content, discovers
-  the content is identical, it can use to make a future call to `modified?/2`
-  return `false`.
-
-  A typical invocation looks something like this:
-
-  ```
-  new_snapshot =
-    if FileSnapshot.modified?(snapshot, path) do
-      other = FileSnapshot.save(path)
-      if old_content_matches_new_content? and snapshot.last_modified == other.last_modified do
-        FileSnapshot.set_clean(snapshot, other)
-      else
-        snapshot
-      end
-    else
-      snapshot
-    end
-  ```
-
-  ## Return Value
-
-  `:ok`
-  """
-  @spec set_clean(snapshot :: t, other :: t) :: :ok
-  def set_clean(sanpshot, other)
-
-  def set_clean(
-        %__MODULE__{last_modified: last_modified, ref: ref},
-        %__MODULE__{ref: other_ref}
-      ) do
-    other_last_read = ConCache.get(:xgit_file_snapshot, other_ref)
-
-    if not_racy_clean?(last_modified, other_last_read) do
-      ConCache.delete(:xgit_file_snapshot, ref)
-    else
-      record_time_for_ref(ref, not_racy_clean?(last_modified, other_last_read))
-    end
-
-    cover :ok
-  end
-
-  defp modified_impl?(file_last_modified, last_modified, ref) do
-    last_read_time = ConCache.get(:xgit_file_snapshot, ref)
-
-    if last_modified == file_last_modified do
-      modified_impl_race?(file_last_modified, last_read_time)
-    else
-      cover true
-    end
-  end
-
-  # There's a potential race condition in which the file was modified at roughly
-  # the same time as the last time we read the modification time. If these two
-  # events are too close together, we have to assume the file is modified.
-
-  defp modified_impl_race?(_file_last_modified, x) when x == false or x == nil do
-    # We have already determined the last read was far enough
-    # after the last modification that any new modifications
-    # are certain to change the last modified time.
-    cover false
-  end
-
-  defp modified_impl_race?(file_last_modified, last_read_time) do
-    if not_racy_clean?(file_last_modified, last_read_time) do
-      # Timestamp from last read is far enough from file modification
-      # date that we can be confident that the file has not changed
-      # by virtue of the timestamp.
-      cover false
-    else
-      # We last read this path too close to its last observed
-      # modification time. We may have missed a modification.
-      # Scan again, to ensure we still see the same state.
-      cover true
-    end
-  end
-
-  defp not_racy_clean?(last_modified_time, last_read_time) do
-    last_read_time - last_modified_time >= 3
-    # The last modified time granularity of FAT filesystems is 2 seconds.
-    # Using 3 seconds here provides a reasonably high assurance that
-    # a modification was not missed.
-  end
-
-  defp record_time_for_ref(ref, time \\ :os.system_time(:second)) when is_reference(ref),
-    do: ConCache.put(:xgit_file_snapshot, ref, time)
-
-  defimpl String.Chars do
-    alias Xgit.Util.FileSnapshot
-
-    @impl true
-    def to_string(%FileSnapshot{last_modified: :dirty}), do: cover("DIRTY")
-
-    def to_string(%FileSnapshot{last_modified: :missing}), do: cover("MISSING_FILE")
-
-    def to_string(%FileSnapshot{last_modified: last_modified, ref: ref}) do
-      last_read_time = ConCache.get(:xgit_file_snapshot, ref)
-      "FileSnapshot[modified: #{last_modified}, read: #{last_read_time}]"
-    end
-  end
-end
diff --git a/mix.exs b/mix.exs
index 11c9f00..54f30c6 100644
--- a/mix.exs
+++ b/mix.exs
@@ -26,7 +26,6 @@ defmodule Xgit.MixProject do
   defp deps do
     [
       {:benchee, "~> 1.0", only: :dev},
-      {:con_cache, "~> 0.13"},
       {:credo, "~> 1.1", only: [:dev, :test]},
       {:dialyxir, "~> 1.0.0-rc.6", only: :dev, runtime: false},
       {:excoveralls, "~> 0.11", only: :test},
diff --git a/mix.lock b/mix.lock
index 88fef95..f9e9aba 100644
--- a/mix.lock
+++ b/mix.lock
@@ -2,7 +2,6 @@
   "benchee": {:hex, :benchee, "1.0.1", "66b211f9bfd84bd97e6d1beaddf8fc2312aaabe192f776e8931cb0c16f53a521", [:mix], [{:deep_merge, "~> 1.0", [hex: :deep_merge, optional: false]}]},
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], []},
   "certifi": {:hex, :certifi, "2.5.1", "867ce347f7c7d78563450a18a6a28a8090331e77fa02380b4a21962a65d36ee5", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, optional: false]}]},
-  "con_cache": {:hex, :con_cache, "0.14.0", "863acb90fa08017be3129074993af944cf7a4b6c3ee7c06c5cd0ed6b94fbc223", [:mix], []},
   "credo": {:hex, :credo, "1.1.5", "caec7a3cadd2e58609d7ee25b3931b129e739e070539ad1a0cd7efeeb47014f4", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
   "deep_merge": {:hex, :deep_merge, "1.0.0", "b4aa1a0d1acac393bdf38b2291af38cb1d4a52806cf7a4906f718e1feb5ee961", [:mix], []},
   "dialyxir": {:hex, :dialyxir, "1.0.0-rc.7", "6287f8f2cb45df8584317a4be1075b8c9b8a69de8eeb82b4d9e6c761cf2664cd", [:mix], [{:erlex, ">= 0.2.5", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm"},
diff --git a/test/xgit/util/file_snapshot_test.exs b/test/xgit/util/file_snapshot_test.exs
deleted file mode 100644
index db4850f..0000000
--- a/test/xgit/util/file_snapshot_test.exs
+++ /dev/null
@@ -1,168 +0,0 @@
-# Copyright (C) 2010, Robin Rosenberg
-# and other copyright owners as documented in the project's IP log.
-#
-# Elixir adaptation from jgit file:
-# org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/FileSnapshotTest.java
-#
-# Copyright (C) 2019, Eric Scouten <eric+xgit@scouten.com>
-#
-# This program and the accompanying materials are made available
-# under the terms of the Eclipse Distribution License v1.0 which
-# accompanies this distribution, is reproduced below, and is
-# available at http://www.eclipse.org/org/documents/edl-v10.php
-#
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or
-# without modification, are permitted provided that the following
-# conditions are met:
-#
-# - Redistributions of source code must retain the above copyright
-#   notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above
-#   copyright notice, this list of conditions and the following
-#   disclaimer in the documentation and/or other materials provided
-#   with the distribution.
-#
-# - Neither the name of the Eclipse Foundation, Inc. nor the
-#   names of its contributors may be used to endorse or promote
-#   products derived from this software without specific prior
-#   written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-defmodule Xgit.Util.FileSnapshotTest do
-  use ExUnit.Case, async: true
-
-  alias Xgit.Util.FileSnapshot
-
-  setup do
-    Temp.track!()
-    temp_file_path = Temp.mkdir!(prefix: "tmp_")
-    {:ok, trash: temp_file_path}
-  end
-
-  defp wait_next_sec(f) when is_binary(f) do
-    %{mtime: initial_last_modified} = File.stat!(f, time: :posix)
-    wait_next_sec(f, initial_last_modified)
-  end
-
-  defp wait_next_sec(f, initial_last_modified) do
-    time_now = :os.system_time(:second)
-
-    if time_now <= initial_last_modified do
-      Process.sleep(100)
-      wait_next_sec(f, initial_last_modified)
-    end
-  end
-
-  test "missing_file/0", %{trash: trash} do
-    missing = FileSnapshot.missing_file()
-    path = Temp.path!()
-
-    refute FileSnapshot.modified?(missing, path)
-
-    f1 = create_file!(trash, "missing")
-    assert FileSnapshot.modified?(missing, f1)
-
-    assert to_string(missing) == "MISSING_FILE"
-  end
-
-  test "actually is modified (trivial case)", %{trash: trash} do
-    f1 = create_file!(trash, "simple")
-    wait_next_sec(f1)
-
-    save = FileSnapshot.save(f1)
-    append!(f1, 'x')
-
-    wait_next_sec(f1)
-
-    assert FileSnapshot.modified?(save, f1) == true
-
-    assert String.starts_with?(to_string(save), "FileSnapshot")
-  end
-
-  test "new file without significant wait", %{trash: trash} do
-    f1 = create_file!(trash, "newfile")
-    Process.sleep(1500)
-
-    save = FileSnapshot.save(f1)
-    assert FileSnapshot.modified?(save, f1) == true
-  end
-
-  test "new file without wait", %{trash: trash} do
-    # Same as above but do not wait at all.
-
-    f1 = create_file!(trash, "newfile")
-    wait_next_sec(f1)
-
-    save = FileSnapshot.save(f1)
-    assert FileSnapshot.modified?(save, f1) == true
-  end
-
-  test "new file and wait 3 sec", %{trash: trash} do
-    f1 = create_file!(trash, "newfile")
-
-    Process.sleep(3000)
-
-    save = FileSnapshot.save(f1)
-    assert FileSnapshot.modified?(save, f1) == false
-  end
-
-  test "dirty snapshot is always dirty", %{trash: trash} do
-    f1 = create_file!(trash, "newfile")
-    wait_next_sec(f1)
-
-    dirty = FileSnapshot.dirty()
-    assert FileSnapshot.modified?(dirty, f1) == true
-
-    assert to_string(dirty) == "DIRTY"
-  end
-
-  describe "set_clean/2" do
-    test "without delay", %{trash: trash} do
-      f1 = create_file!(trash, "newfile")
-      wait_next_sec(f1)
-
-      save = FileSnapshot.save(f1)
-      assert FileSnapshot.modified?(save, f1) == true
-
-      # an abuse of the API, but best we can do
-      FileSnapshot.set_clean(save, save)
-      assert FileSnapshot.modified?(save, f1) == false
-    end
-
-    test "with (faked) delay", %{trash: trash} do
-      f1 = create_file!(trash, "newfile")
-      wait_next_sec(f1)
-
-      save = FileSnapshot.save(f1)
-      assert FileSnapshot.modified?(save, f1) == true
-
-      modified_earlier = %{save | last_modified: save.last_modified - 10}
-      FileSnapshot.set_clean(modified_earlier, save)
-      assert FileSnapshot.modified?(modified_earlier, f1) == true
-    end
-  end
-
-  defp create_file!(trash, leaf_name) when is_binary(trash) and is_binary(leaf_name) do
-    path = Path.expand(leaf_name, trash)
-    File.touch!(path)
-    path
-  end
-
-  defp append!(path, b) when is_binary(path) and is_list(b), do: File.write!(path, b, [:append])
-end