diff --git a/pkgs/by-name/oa/oama/generated-package.nix b/pkgs/by-name/oa/oama/generated-package.nix
new file mode 100644
index 000000000000..f024cc98466d
--- /dev/null
+++ b/pkgs/by-name/oa/oama/generated-package.nix
@@ -0,0 +1,94 @@
+# This file has been autogenerate with cabal2nix.
+# Update via ./update.sh
+{
+  mkDerivation,
+  aeson,
+  base,
+  bytestring,
+  containers,
+  directory,
+  fetchgit,
+  hsyslog,
+  http-conduit,
+  lib,
+  mtl,
+  network,
+  network-uri,
+  optparse-applicative,
+  pretty-simple,
+  process,
+  streaming-commons,
+  string-qq,
+  strings,
+  text,
+  time,
+  twain,
+  unix,
+  utf8-string,
+  warp,
+  yaml,
+}:
+mkDerivation {
+  pname = "oama";
+  version = "0.14";
+  src = fetchgit {
+    url = "https://github.com/pdobsan/oama.git";
+    sha256 = "1hdhkc6hh4nvx31vkaii7hd2rxlwqrsvr6i1i0a9r1xlda05ffq0";
+    rev = "4e1ffd3001034771d284678f0160060c1871707c";
+    fetchSubmodules = true;
+  };
+  isLibrary = true;
+  isExecutable = true;
+  libraryHaskellDepends = [
+    aeson
+    base
+    bytestring
+    containers
+    directory
+    hsyslog
+    http-conduit
+    mtl
+    network
+    network-uri
+    optparse-applicative
+    pretty-simple
+    process
+    streaming-commons
+    string-qq
+    strings
+    text
+    time
+    twain
+    unix
+    utf8-string
+    warp
+    yaml
+  ];
+  executableHaskellDepends = [
+    aeson
+    base
+    bytestring
+    containers
+    directory
+    hsyslog
+    http-conduit
+    mtl
+    network
+    network-uri
+    optparse-applicative
+    pretty-simple
+    process
+    streaming-commons
+    string-qq
+    strings
+    text
+    time
+    twain
+    unix
+    utf8-string
+    warp
+    yaml
+  ];
+  license = lib.licenses.bsd3;
+  mainProgram = "oama";
+}
diff --git a/pkgs/by-name/oa/oama/package.nix b/pkgs/by-name/oa/oama/package.nix
new file mode 100644
index 000000000000..c408ef4e87f8
--- /dev/null
+++ b/pkgs/by-name/oa/oama/package.nix
@@ -0,0 +1,29 @@
+{
+  haskell,
+  haskellPackages,
+  lib,
+}:
+let
+  inherit (haskell.lib.compose) overrideCabal justStaticExecutables;
+
+  overrides = {
+    description = "OAuth credential MAnager";
+    homepage = "https://github.com/pdobsan/oama";
+    maintainers = with lib.maintainers; [ aidalgol ];
+
+    passthru.updateScript = ./update.sh;
+  };
+
+  raw-pkg = (haskellPackages.callPackage ./generated-package.nix { }).overrideScope (
+    final: prev: {
+      # Dependency twain requires an older version of http2, and we cannot mix
+      # versions of transitive dependencies.
+      http2 = final.http2_3_0_3;
+      warp = final.warp_3_3_30;
+    }
+  );
+in
+lib.pipe raw-pkg [
+  (overrideCabal overrides)
+  justStaticExecutables
+]
diff --git a/pkgs/by-name/oa/oama/update.sh b/pkgs/by-name/oa/oama/update.sh
new file mode 100755
index 000000000000..60d1c74cbca1
--- /dev/null
+++ b/pkgs/by-name/oa/oama/update.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p cabal2nix curl jq nixfmt-rfc-style
+
+set -euo pipefail
+
+# This is the directory of this update.sh script.
+script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+derivation_file="${script_dir}/generated-package.nix"
+latest_version="$(curl --silent https://api.github.com/repos/pdobsan/oama/releases/latest | jq --raw-output '.tag_name')"
+
+echo "Updating oama to version ${latest_version}."
+echo "Running cabal2nix and outputting to ${derivation_file}..."
+
+cat > "${derivation_file}" << EOF
+# This file has been autogenerate with cabal2nix.
+# Update via ./update.sh
+EOF
+
+cabal2nix --revision "${latest_version}" https://github.com/pdobsan/oama.git >> "${derivation_file}"
+nixfmt "${derivation_file}"
+
+echo "Finished."