Add initial amfora formula

.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/linux,homebrew
+# Edit at https://www.toptal.com/developers/gitignore?templates=linux,homebrew
+
+### Homebrew ###
+Brewfile.lock.json
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# End of https://www.toptal.com/developers/gitignore/api/linux,homebrew

Formula/amfora.rb

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+# frozen_string_literal: true
+
+class Amfora < Formula
+  desc "A fancy terminal browser for the Gemini protocol."
+  homepage "https://github.com/makeworld-the-better-one/amfora"
+  url "https://github.com/makeworld-the-better-one/amfora/archive/v1.5.0.tar.gz"
+  sha256 "c8478b00155ad74712b957444b7afe025a74030907b77cca0903b6477f79843d"
+  license "GPL-3.0"
+  version "1.5.0"
+
+  head do
+    url "https://github.com/makeworld-the-better-one/amfora.git"
+  end
+
+  depends_on "go" => :build
+
+  def install
+    ENV["GO111MODULE"] = "on"
+    ENV["CGO_ENABLED"] = "0"
+    system "go", "mod", "download"
+    system "go", "build", "-o", "bin/amfora", "-ldflags=\"-s -w -X main.version=1.5.0 -X main.commit=922e7981a92cb7bf0d7b3baf1694d0fffe90d448 -X main.builtBy=official-brew-tap\""
+    bin.install "bin/amfora"
+  end
+end