Missing leyline binary

[kiawin]

Describe the bug

When I run mache, I noticed get_diagnostics error out

no _lsp table — auto-enrichment failed: discover/start leyline: no ley-line socket found and leyline binary not on PATH

It seems like leyline is not found. I guess this binary is not released?

To Reproduce
Steps to reproduce the behavior:

1. Use get_diagnostics tool

Expected behavior
The LSP feature should be working as expected

Environment (please complete the following information):

• OS: macOs
• Version: ➜ mache version v0.5.6 (commit c67f5a0, built 2026-03-14T14:40:01Z)
• FUSE version: fuse-t 1.0.49

Logs / Output

no _lsp table — auto-enrichment failed: discover/start leyline: no ley-line socket found and leyline binary not on PATH

Additional context

I build mache myself and move it to ~/.local/bin for usage.

[jamestexas]

@kiawan thanks for the report!
If you are just wanting to use as an MCP, you should be able to use the below to install. Docs look out of date on here a bit - will address.

Some background:
Leyline is a data plane written in rust that exposes c-native features to mache in a manner that allows zero-copy. I dont intend to make it open at this point but will make it a priority to make the package accessible.

Additionally it offers a userspace NFS host that is much faster than fuse-t / go’s version on MacOSX specifically.

brew tap agentic-research/tap/mache
brew install mache

The entire stack was designed as local first with remote execution in mind. So if you have any problems please let me know!

[kiawin]

Hi @jamestexas, is the tap public? This is what I get when I execute brew tap agentic-research/tap/mache

Error: Invalid tap name: 'agentic-research/tap/mache'

This is what I get when I execute brew install agentic-research/tap/mache

==> Tapping agentic-research/tap
Cloning into '/opt/homebrew/Library/Taps/agentic-research/homebrew-tap'...
remote: Repository not found.
fatal: repository 'https://github.com/agentic-research/homebrew-tap/' not found
Error: Failure while executing; `git clone https://github.com/agentic-research/homebrew-tap /opt/homebrew/Library/Taps/agentic-research/homebrew-tap --origin=origin --template= --config core.fsmonitor=false` exited with 128.

[jamestexas]

@kiawin sorry about the delay - I’ve been working on making the leyline stuff that isn’t special open source (repo is at ley-line-open).
I’ve not quite got it published as a package again yet but give me a few days and I’ll write out instructions / wire it up so it works automatically again.

The entire point of the backend is to make userspace nfs possible (so no sud needed etc) 😅.

I’ve also been rewriting some of the code for an in memory variant only (so no FS needed) and binding things behind appropriate build tags regarding CGO / no CGO.