sfs v0.1: mountable synced file system for AI agents

- sfs mnt/umnt/sync/status/log/remote/whoami CLI (cobra)
- per-device append-only journals + content-addressed blob store
- deterministic lamport-ordered merge, LWW with conflict-copy preservation
- cloud-agnostic backends: S3, GCS, file:// (S3-compatible via AWS_ENDPOINT_URL)
- offline-first: real files on disk, journal locally, push on reconnect
- background sync daemon per mount with change tracking (device/author/time)
- macOS + Linux; Homebrew formula + goreleaser release pipeline

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packaging/homebrew/sfs.rb

@@ -0,0 +1,27 @@
+# Homebrew formula for sfs.
+#
+# This is the source-build formula for the runbear-io/homebrew-tap repo.
+# Releases via goreleaser (.goreleaser.yaml) generate a bottle-style formula
+# with prebuilt binaries automatically; this file is the manual fallback and
+# the template for the first tap publication. Update `url` and `sha256` per
+# release (sha256: `curl -L <url> | shasum -a 256`).
+class Sfs < Formula
+  desc "Synced file system for AI agents: mount, sync, and track folders"
+  homepage "https://github.com/runbear-io/sfs"
+  url "https://github.com/runbear-io/sfs/archive/refs/tags/v0.1.0.tar.gz"
+  sha256 "0000000000000000000000000000000000000000000000000000000000000000" # update per release
+  license "MIT"
+  head "https://github.com/runbear-io/sfs.git", branch: "main"
+
+  depends_on "go" => :build
+
+  def install
+    system "go", "build", *std_go_args(ldflags: "-s -w -X main.version=#{version}"), "./cmd/sfs"
+  end
+
+  test do
+    assert_match "sfs", shell_output("#{bin}/sfs version")
+    ENV["SFS_HOME"] = testpath/".sfs"
+    system bin/"sfs", "whoami"
+  end
+end