About

Federated micro-blogging platform.

Built on ActivityPub protocol, self-hosted, lightweight. Part of the Fediverse.

Features:

• Micro-blogging service
  • Quote posts, custom emojis, reactions, polls and more.
  • Default character limit is 5000.
  • Support for markdown-style formatting.
  • Mastodon API.
• Easy installation and small memory footprint (<50 MB).
• Interoperable. Can show content from blogs, forums and other types of federated services.
• Groups.
• Content subscription service. Subscriptions provide a way to receive monthly payments from subscribers and to publish private content made exclusively for them.
  • Supported payment methods: Monero, a peer to peer digital cash system where transactions are private by default.
• Account migrations (from one server to another). Identity can be detached from the server.
• Federation over Tor and/or I2P.

Follow: @mitra@mitra.social

Matrix chat: #mitra:unredacted.org

Instances

• FediDB
• Fediverse Observer
• FediList

Demo instance: https://public.mitra.social/ (invite-only)

Supported clients

• mitra-web (Web)
• Bloat (Web, NoJS)
• Phanpy (Web)
• Nicolium (Web)
• Husky (Android)
• Fedilab (Android)
• Fedicat (iOS)
• Tuba (Desktop)
• toot (CLI)
• mastodon.el (Emacs)

Requirements

• PostgreSQL 15+
• Rust 1.85+ (when building from source)
• SSL certificates (i.e. ca-certificates package).

Minimum system requirements:

• 256 MB RAM (1.5 GB for building from source)
• 10 GB storage for average single user instance with default configuration

Installation

Debian package

Download package from the Releases page.

Install Mitra:

dpkg -i mitra_amd64.deb

Install PostgreSQL, then create the database:

CREATEUSERmitraWITHPASSWORD'mitra';CREATEDATABASEmitraOWNERmitraENCODING'UTF8';

Open configuration file /etc/mitra/config.yaml and configure the instance.

Create admin account:

su mitra -s $SHELL -c "mitra create-account <username> <password> admin"

Start Mitra:

systemctl enable --now mitra

An HTTP server will be needed to handle HTTPS requests. See examples of Nginx and Caddy configuration files.

Building from source

Install cargo.

Clone the git repository or download the source archive from the Releases page.

Navigate to the repository directory. Then run:

cargo build --release --features production

This command will produce a mitra binary in target/release directory.

Install PostgreSQL, then create the database:

CREATEUSERmitraWITHPASSWORD'mitra';CREATEDATABASEmitraOWNERmitraENCODING'UTF8';

Create configuration file by copying config.example.yaml or config.example.toml, and configure the instance. Default config file path is config.yaml, but it can be changed using CONFIG_PATH environment variable.

Create data and web client directories at locations specified in the configuration file (storage_dir and web_client_dir parameters).

Put any static files into the web client directory. Building instructions for mitra-web frontend can be found at https://codeberg.org/silverpill/mitra-web#project-setup.

Create admin account:

./mitra create-account <username> <password> admin

Start Mitra:

./mitra server

An HTTP server will be needed to handle HTTPS requests. See examples of Nginx and Caddy configuration files.

To run Mitra as a systemd service, check out the systemd unit file example.

Other installation methods

These images and packages are maintained by the community.

Docker images

• https://hub.docker.com/r/bleakfuture0/mitra
• https://hub.docker.com/r/fjox/mitra

Alpine Linux

Install from testing repository:

echo '@testing https://dl-cdn.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories
apk update
apk add -vi mitra@testing

Nix

https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/by-name/mi/mitra/package.nix

YunoHost

https://apps.yunohost.org/app/mitra

Upgrading

Mitra uses semantic versioning (major.minor.patch):

• patch - bugfixes
• minor - improvements and new features
• major - breaking changes

Upgrade to a minor or a patch version is performed by replacing binaries and restarting the service.

Upgrade to a major version requires special migration steps that are documented in release notes.

Debian package

Install package:

dpkg -i mitra_amd64.deb

The server will be stopped automatically during installation. Do not overwrite existing configuration file if asked.

Start Mitra again when the installation is complete:

systemctl start mitra

Configuration

Examples

• YAML configuration file
• TOML configuration file

Environment variables

See defaults.

Tor/I2P federation

See Tor guide and I2P guide.

Payments

• Monero

Subscriptions can be used without enabling Monero integration.

IPFS integration (experimental)

See guide.

IPFS integration is not actively maintained and may be removed in the future.

Administration

• Backup and restore
• Cache management
• Filter
• Split-domain setup
• Relays
• Custom themes
• Debugging

CLI

CLI is stable and breaking changes don't happen in minor releases.

Documentation

REST API

The majority of endpoints imitate Mastodon API. Some Pleroma extensions are supported as well. A number of additional endpoints exist for features that are unique to Mitra.

Client API is stable and breaking changes don't happen in minor releases.

OpenAPI spec

Federation

See FEDERATION.md

ActivityPub Client API

This API is not stable and may be removed in the future.

Documentation

Development

See CONTRIBUTING.md

Start database server

docker-compose up -d

Test connection:

psql -h localhost -p 55432 -U mitra mitra

Start Monero node and wallet server

(this step is optional)

docker-compose --profile monero up -d

Run web service

Create config file, adjust settings if needed:

cp config_dev.example.yaml config.yaml

Compile and run service:

cargo run server

Run CLI

cargo run

Run linter

cargo clippy

Run tests

cargo test

License

AGPL-3.0

Support

Monero: 8Ahza5RM4JQgtdqvpcF1U628NN5Q87eryXQad3Fy581YWTZU8o3EMbtScuioQZSkyNNEEE1Lkj2cSbG4VnVYCW5L1N4os5p