Ask HN: What underrated open source project deserves more recognition?

Filestash [1] was born after the infamous FTP top answer on the Dropbox launch [2]. Trying to understand why we couldn't have nice things made on top of FTP, I came out with this interface:

  type IBackend interface {
    Ls(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
  }

and once I had the UI working nice for FTP, I made it work for every possible file transfer protocol: S3, SFTP, NFS, SMB, WebDAV, Dropbox, Google Drive, .....

[1] https://github.com/mickael-kerjean/filestash

[2] https://news.ycombinator.com/item?id=8863

Spotlight Search: https://github.com/harana/search

File Explorer: https://github.com/spacedriveapp/spacedrive

Rust/GraphQL Server: https://github.com/exograph/exograph

Dataflow Engine: https://github.com/hydro-project/hydroflow

CRDT Generator: https://github.com/hydro-project/katara

Cloud File Transfer: https://github.com/skyplane-project/skyplane

Small AutoIt utility scripts, such as WhyNotWin11 and other applets by similar users using AutoIt to make VB6-era -esq programs. These are always neither motivated by lofty architectural goals to “do things correctly” of many collaborative open source projects that forgot about laymen-ergonomics entirely, nor user-acquisition driven dark-pattern minefields of sluggish eye candy entirely focused on exploiting the aforementioned laymen-approachability, instead just being small-scope, pragmatic UX solutions to solve minuscule pain-/friction-points in interacting with Windows that are too fragmented to be part of some overarching software utility. They replace the typical SEO shovelware web app/adware that you get when searching on Google for “how do you do X on windows” that sends you to some factory-stamped installshield executable which does nothing more than passing command line arguments to some existing open-source CLI software that neglected laymen-usability.

"OpenRefine is a powerful free, open source tool for working with messy data: cleaning it; transforming it from one format into another; and extending it with web services and external data." https://openrefine.org/