A self-hosted web file previewer/editor. Obsidian's look, without the parts you don't use, plus image and video previewing. Read-only integration with SaraTag's per-file Book tags is included.

It's made by Sarah, hence the name. :3

Usage

SaraView is for people who want an Obsidian-style notes app they host themselves, people who want to preview and edit files from any browser, and people who want multiple accounts with their own private directories.

Example use-cases:

Browsing and editing markdown notes from your phone, without installing anything.
Previewing images and videos that live next to your notes.
Giving a friend or family member their own login, with a directory only they can see.

Dependencies

Docker + Docker Compose. That's it for running it.

For local development instead: Python 3.11+, and Node.js + npm.

Installation

Here's a step-by-step tutorial.

Clone or download this repository.
Edit SaraViewConf.toml at the project root. Set your [Roots], [SaraTag], and [Storage] paths. (See Config Info below for what each field does.)
Edit docker-compose.yml. Add a volumes: line for every root you declared, mount your SaraTag .saratag folder read-only, and bind the port to your Tailscale interface's IP instead of 0.0.0.0 if you want it reachable only over the tailnet.
Run docker compose up --build -d.

The backend serves the built frontend directly, so the whole app is on one port (8420 by default).

Config Info

Paths in SaraViewConf.toml are resolved as given. Use absolute container paths when running via Docker (see docker-compose.yml), matching whatever you mount the volumes to.

[SaraView]
ConfigVersion = 1
ApplicationVersion = "0.1.0-beta"

[Server]
Host = "0.0.0.0"
Port = 8420

[Storage]
DataDirectory = "/data/SaraViewData"

[Roots]
Notes = "/data/notes"

[SaraTag]
Enabled = true
CoreModulePath = "/data/SaraTag/.saratag"
HideInternalFiles = true
InternalPatterns = [".saratag", ".SaraTag*", "*.book.toml"]

[Storage] DataDirectory is where SaraView keeps its own data - Settings, Users, Themes, and so on. This is NOT one of the [Roots] below, so it's structurally unreachable from the file browser regardless of any hidden-file setting. Give it its own persistent volume (see docker-compose.yml) so it survives rebuilds.
[Roots] lists the named roots the browser can navigate. Add as many as you like; each becomes a top-level entry point in the frontend's root switcher.
[SaraTag], if Enabled, makes SaraView import SaraTag's own Core.py directly (by file path, not by installing it as a package) to resolve Book tag files exactly the way SaraTag itself does. This is read-only - SaraView never writes Book or Lexicon files.

Local Development

Backend:

cd Backend
pip install -r requirements.txt
uvicorn Main:Application --reload --port 8420

Frontend, in a second terminal. Vite proxies /api to the backend.

cd Frontend
npm install
npm run dev

Directories as Files

Every directory gets its own note file. It's a hidden .sv_{DirectoryName}.md, created automatically the moment you make the directory. Any extension works if you rename the note later; markdown is just the default.

Click a directory the same way you'd click a file, and its note opens with the same edit/view/save toolbar. There's no separate "directory mode." Renaming or moving a directory keeps its note's name in sync automatically. Deleting a directory takes its note with it.

Browsing what's actually inside a directory is a sidebar-only action. Expand a folder there to see its contents. The "Open directory file on click" setting in Settings decides whether expanding a directory in the sidebar also opens its note in the main pane, or leaves the main pane alone.

Note files are hidden from listings by default, since their name starts with .sv_. This is independent of the regular "show hidden directories" setting. Flip on "Show directory note files (.sv_*)" in Settings if you want to see and manage them directly, like any other file.

SaraTag Integration

SaraView never writes to Book or Lexicon files. It only reads them, by loading SaraTag's own Core.py directly (by file path, not as an installed package), so tag resolution always matches what SaraTag itself would show.

Editing tags from SaraView isn't implemented yet. SaraTag's own TUI remains the place to do that for now.

Settings and Themes

Settings (font, font size, active theme, hidden-folder visibility, breadcrumb visibility) and themes live in Settings.toml and Themes/*.toml inside the saraview_data volume. Not in any of your [Roots], so they're never browsable from the app itself.

Three themes ship built in: CatppuccinMocha, Gruvbox, and Forest. Every theme is just a flat set of named color roles (Background, Surface, Text, Red, Orange, ... Purple), so creating a custom theme from Settings, or hand-writing a new file in Themes/, only needs those same role names filled in.

This is all per-user. Each account gets its own Settings/<Username>.toml inside the data volume, seeded from the same defaults the first time that user logs in. Themes themselves are shared across everyone (there's only one copy of each theme file), but which theme is active is a per-user choice.

On first launch, with no accounts yet, SaraView shows a one-time "create the admin account" screen instead of a normal login. Whoever sets that up first becomes an admin. After that, it's a normal username/password login screen for everyone.

Accounts live in Users.toml in the same saraview_data volume as Settings and Themes. Passwords are hashed with PBKDF2-SHA256, never stored in plain text. Admins get a "Users" section inside Settings to create additional accounts, including other admins.

Sessions are currently in-memory only, so restarting the container logs everyone out. Fine for now with a small, trusted set of tailnet users.

Running on ZimaOS Without Building Locally

The repo publishes a built image to GitHub Container Registry via .github/workflows/docker-publish.yml, so ZimaOS (or any other machine) can just pull and run it instead of building from source every time.

One-time setup after this workflow first runs: GHCR packages built by a workflow's built-in token default to private, even on a public repo. Go to your GitHub profile → Packages → saraview → Package settings → Change visibility → Public. Until you do this, pulling the image from ZimaOS will fail with an authentication error.

Here's a step-by-step tutorial for installing on ZimaOS.

Copy docker-compose.ghcr.yml and SaraViewConf.toml to the ZimaOS box (or wherever you're running docker compose from for this).
Edit the volume paths in docker-compose.ghcr.yml the same way you would for local docker-compose.yml. Real paths on the left of each :.
In ZimaOS's dashboard, use Install a customized app (its Docker Compose import option) and point it at that compose file. Or just run docker compose -f docker-compose.ghcr.yml up -d directly if you'd rather do it from a terminal on the box.

Updating later: push to main (or tag a release like v1.1.0) to build a fresh image, then on ZimaOS re-pull and recreate the container. Either through its UI's update/recreate action, or:

docker compose -f docker-compose.ghcr.yml pull
docker compose -f docker-compose.ghcr.yml up -d

Groups and Access Control

Admin isn't a hardcoded flag. It's the built-in "Admin" group, which can't be deleted but is otherwise just a group like any other. Manage groups (create, delete, edit membership) from Settings → Groups (admin-only).

Setting access on a file or directory is not admin-only. Anyone can restrict a file or directory to specific users and/or groups, whether at creation time (the New File/New Directory dialog includes a search-and- checkbox picker) or afterwards via the 🔒 button next to any entry, in either the sidebar tree or the directory-browse pane. If you can currently see something, you're trusted to change who else can.

Admins do not bypass restrictions. Admin is a management group (creating users, managing groups, and so on), not a way to view everyone's private directories. Only direct access to the server's files can see everything.

Restricting is per-file-or-directory. Locking a directory covers everything inside it automatically (there's only ever one restriction record per locked directory; reaching anything underneath still requires being permitted on that ancestor), while locking an individual file affects only that file.

Anyone without access gets a plain 404, both for direct requests and for that entry showing up in a directory listing. A restricted item's existence isn't revealed to people who can't see it. Admins get a global overview of every current restriction from Settings → Locked Directories.

Blame Privacy

Each person can turn off "Show my edits in others' blame view" in their own Settings. When that's off, other users still see that lines were changed, just with the identity redacted, rather than attributing it to someone who asked not to be shown. You can always see your own attribution regardless of this setting.

There's also a per-viewer toggle for showing avatars instead of usernames in the blame gutter, using each author's chosen colour either way.

README.md

SaraView