The project's README from github.com/mickael-kerjean/filestash. As one markdown file: README.md.

Filestash started as a storage agnostic Dropbox-like file manager that speaks every storage protocol (FTP, SFTP, S3, SMB, WebDAV, IPFS, and about 20 more). It grew into what we want to be the world's best file management platform, centered around 3 separate products:
The philosophy that guides this project is: "anything that's not a fundamental truth of the universe lives in a plugin". That keeps the core lean and fast, and the opinions replaceable, so when your requirements get deep or weird, the answer is a plugin, not a fork. You only carry the bloat you really need.
Malleability isn't an afterthought, it's the whole architecture:
anything that's not a fundamental truth of the universe lives in a plugin
Taken literally, the "truths of the universe" are a set of core interfaces, one for every key component of Filestash, and they're yours to implement (storage, authentication, authorisation, search, thumbnailing, apps, middleware, frontend changes, ...)
The oldest one is the storage interface, the one at work whenever you connect to a storage:
type IBackend interface {
Ls(path string) ([]os.FileInfo, error)
Stat(path string) (os.FileInfo, error)
Cat(path string) (io.ReadCloser, error)
Mkdir(path string) error
Rm(path string) error
Mv(from string, to string) error
Save(path string, file io.Reader) error
Touch(path string) error
}
Historically, plugins were made in Go and compiled in. Today there's a second path: runtime plugins, a zip you drop in the plugins folder. The zip can reshape the frontend and it can carry wasm implementing the very same core interfaces. That wasm runs in a VM with tight control on permissions: no declared network host, no way to phone home. Installing a plugin doesn't mean trusting it with everything.
For example:
use filestash::*;
#[derive(Default)]
pub struct Plugin;
impl Authorisation for Plugin {
fn ls(&self, _ctx: &Context, path: &str) -> Decision {
self.check(path)
}
fn cat(&self, _ctx: &Context, path: &str) -> Decision { ... }
fn stat(&self, _ctx: &Context, path: &str) -> Decision { ... }
}
impl Plugin {
fn check(&self, path: &str) -> Decision {
if path.split("/").any(|segment| segment == "top_secret") {
log::warn!("[TOPSECRET] access denied !!");
return Decision::Deny;
}
Decision::Allow
}
}
register!(Plugin: Authorisation);
These few lines give you a readonly view of your data where every folder named "top_secret" is off limits. For more examples, browse the plugin folder, the runtime plugin cookbook, and the plugin marketplace.
And to be clear, code is the power-user path, there are no code options
To install Filestash, head to the Getting started guide. If you want to leverage plugins, head over to the inventory, or learn about developing your own plugins.
3LX5KGmSmHDj5EuXrmUvcg77EJxCxmdsgWFamiliar with the infamous comment from Dropbox's launch on HN? In my memory it goes like this:
Filestash stands on the shoulder of: contributors, folks developing awesome libraries, BrandonM, a whole bunch of C stuff (the C standard library, libjpeg, libpng, libgif, libraw and many more), fontawesome, material, Browser stack to let us test on real devices, and the many guys from Nebraska and elsewhere who have been thanklessly maintaining the critical pieces that Filestash sits on top: