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diff --git a/lib/pleroma/docs/json.ex b/lib/pleroma/docs/json.ex
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Docs.JSON do
+  @behaviour Pleroma.Docs.Generator
+  @external_resource "config/description.exs"
+  @raw_config Pleroma.Config.Loader.read("config/description.exs")
+  @raw_descriptions @raw_config[:pleroma][:config_description]
+  @term __MODULE__.Compiled
+
+  @spec compile :: :ok
+  def compile do
+    descriptions =
+      Pleroma.Web.ActivityPub.MRF.config_descriptions()
+      |> Enum.reduce(@raw_descriptions, fn description, acc -> [description | acc] end)
+
+    :persistent_term.put(@term, Pleroma.Docs.Generator.convert_to_strings(descriptions))
+  end
+
+  @spec compiled_descriptions :: Map.t()
+  def compiled_descriptions do
+    :persistent_term.get(@term)
+  end
+
+  @spec process(keyword()) :: {:ok, String.t()}
+  def process(descriptions) do
+    with path <- "docs/generated_config.json",
+         {:ok, file} <- File.open(path, [:write, :utf8]),
+         formatted_descriptions <-
+           Pleroma.Docs.Generator.convert_to_strings(descriptions),
+         json <- Jason.encode!(formatted_descriptions),
+         :ok <- IO.write(file, json),
+         :ok <- File.close(file) do
+      {:ok, path}
+    end
+  end
+end