* [rbtc](https://github.com/lucawen/rbtc) - Convert BTC to any currency and vice-versa. [<img src="https://api.travis-ci.com/lucawen/rbtc.svg?branch=master">](https://travis-ci.com/lucawen/rbtc/)
* [Nervos CKB](https://github.com/nervosnetwork/ckb) — Nervos CKB is a public permissionless blockchain, the common knowledge layer of Nervos network.
* [rbtc](https://github.com/lucawen/rbtc) — Convert BTC to any currency and vice-versa. [<img src="https://api.travis-ci.com/lucawen/rbtc.svg?branch=master">](https://travis-ci.com/lucawen/rbtc/)
* [wagu](https://crates.io/crates/wagu) — Generate a wallet for any cryptocurrency [<img src="https://api.travis-ci.com/ArgusObserver/wagu.svg?branch=master">](https://api.travis-ci.com/ArgusObserver/wagu.svg?branch=master)
### Database
* [indradb/indradb](https://github.com/indradb/indradb) — Rust based graph database [<img src="https://api.travis-ci.org/indradb/indradb.svg?branch=master">](https://travis-ci.org/indradb/indradb)
* [Mentat](https://mozilla.github.io/mentat/) — Project Mentat is a persistent, embedded knowledge base. It draws heavily on DataScript and Datomic. Mentat is intended to be a flexible relational (not key-value, not document-oriented) store that makes it easy to describe, grow, and reuse your domain schema.
* [Noria](https://github.com/mit-pdos/noria) - Dynamically changing, partially-stateful data-flow for web application backends [<img src="https://api.travis-ci.org/mit-pdos/noria.svg?branch=master">](https://travis-ci.org/mit-pdos/noria)
* [indradb](https://crates.io/crates/indradb) — Rust based graph database [<img src="https://api.travis-ci.org/indradb/indradb.svg?branch=master">](https://travis-ci.org/indradb/indradb)
* [noria](https://crates.io/crates/noria) — Dynamically changing, partially-stateful data-flow for web application backends [<img src="https://api.travis-ci.org/mit-pdos/noria.svg?branch=master">](https://travis-ci.org/mit-pdos/noria)
* [PumpkinDB](https://github.com/PumpkinDB/PumpkinDB) — an event sourcing database engine [<img src="https://api.travis-ci.org/PumpkinDB/PumpkinDB.svg?branch=master">](https://travis-ci.org/PumpkinDB/PumpkinDB)
* [seppo0010/rsedis](https://github.com/seppo0010/rsedis) — A Redis reimplementation in Rust [<img src="https://api.travis-ci.org/seppo0010/rsedis.svg?branch=master">](https://travis-ci.org/seppo0010/rsedis)
* [ParityDB](https://github.com/paritytech/paritydb) — Fast and reliable database, optimised for read operation
@ -254,7 +253,7 @@ See also [A comparison of operating systems written in Rust](https://github.com/
* [mmstick/parallel](https://github.com/mmstick/parallel) — Reimplementation of GNU Parallel
* [mmstick/systemd-manager](https://github.com/mmstick/systemd-manager) — A systemd service manager written in Rust using GTK-rs.
* [mmstick/tv-renamer](https://github.com/mmstick/tv-renamer) — A tv series renaming application with an optional GTK3 frontend. [<img src="https://api.travis-ci.org/mmstick/tv-renamer.svg?branch=master">](https://travis-ci.org/mmstick/tv-renamer)
* [Peltoche/lsd](https://github.com/Peltoche/lsd) - An ls with a lot of pretty colors and awesome icons [<img src="https://api.travis-ci.org/Peltoche/lsd.svg?branch=master">](https://travis-ci.org/Peltoche/lsd)
* [Peltoche/lsd](https://github.com/Peltoche/lsd) — An ls with a lot of pretty colors and awesome icons [<img src="https://api.travis-ci.org/Peltoche/lsd.svg?branch=master">](https://travis-ci.org/Peltoche/lsd)
* [ogham/exa](https://github.com/ogham/exa) — A replacement for 'ls' [<img src="https://api.travis-ci.org/ogham/exa.svg?branch=master">](https://travis-ci.org/ogham/exa)
* [pop-os/debrep](https://github.com/pop-os/debrepbuild) — APT repository tool for building and managing an APT repo
* [pop-os/popsicle](https://github.com/pop-os/popsicle) — GTK3 & CLI utility for flashing multiple USB devices in parallel
@ -284,7 +283,7 @@ See also [A comparison of operating systems written in Rust](https://github.com/
* [lavifb/todo_r](https://github.com/lavifb/todo_r) — Find all your TODO notes with one command! [<img src="https://api.travis-ci.org/lavifb/todo_r.svg?branch=master">](https://travis-ci.org/lavifb/todo_r)
* [whitfin/runiq](https://github.com/whitfin/runiq) — an efficient way to filter duplicate lines from unsorted input.
* [whitfin/bytelines](https://github.com/whitfin/bytelines) - Read input lines as byte slices for high efficiency.
* [whitfin/bytelines](https://github.com/whitfin/bytelines) — Read input lines as byte slices for high efficiency.
* [vishaltelangre/ff](https://github.com/vishaltelangre/ff) — Find files (ff) by name! [<img src="https://api.travis-ci.org/vishaltelangre/ff.svg?branch=master">](https://travis-ci.org/vishaltelangre/ff)
### Utilities
@ -597,7 +596,7 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
* [TeaEntityLab/fpRust](https://github.com/TeaEntityLab/fpRust) — Monad/MonadIO, Handler, Coroutine/doNotation, Functional Programming features for Rust [<img src="https://api.travis-ci.org/TeaEntityLab/fpRust.svg?branch=master" alt="Travis CI Build Status">](https://travis-ci.org/TeaEntityLab/fpRust)
* [rust-lang-nursery/futures-rs](https://github.com/rust-lang-nursery/futures-rs) — Zero-cost futures in Rust [<img src="https://api.travis-ci.org/rust-lang-nursery/futures-rs.svg?branch=master" alt="Travis CI Build Status">](https://travis-ci.org/rust-lang-nursery/futures-rs)
* [carllerche/mio](https://github.com/carllerche/mio) — MIO is a lightweight IO library for Rust with a focus on adding as little overhead as possible over the OS abstractions [<img src="https://api.travis-ci.org/carllerche/mio.svg?branch=master">](https://travis-ci.org/carllerche/mio)
@ -618,16 +617,16 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
### Automotive
* [canparse](https://crates.io/crates/canparse) - A CAN signal and definition parser [<img src="https://api.travis-ci.org/jmagnuson/canparse.svg?branch=master">](https://travis-ci.org/jmagnuson/canparse)
* [JulianSchmid/someip_parse](https://github.com/JulianSchmid/someip-parse-rs) [[someip_parse](https://crates.io/crates/someip_parse)] - A library for parsing the SOME/IP network protocol (without payload interpretation) [<img src="https://api.travis-ci.org/JulianSchmid/someip-parse-rs.svg?branch=master">](https://travis-ci.org/JulianSchmid/someip-parse-rs)
* [LibreTuner/tuneutils](https://github.com/LibreTuner/tuneutils) [[tuneutils](https://crates.io/crates/tuneutils)] - Utilities for interfacing with, diagnosing, and tuning car
* [marcelbuesing/can-dbc](https://github.com/marcelbuesing/can-dbc) [[can-dbc](https://crates.io/crates/can-dbc)] - A parser for the DBC format [<img src="https://api.travis-ci.org/marcelbuesing/can-dbc.svg?branch=dev">](https://travis-ci.org/marcelbuesing/can-dbc)
* [marcelbuesing/tokio-socketcan-bcm](https://github.com/marcelbuesing/tokio-socketcan-bcm) [[tokio-socketcan-bcm](https://crates.io/crates/tokio-socketcan-bcm)] - Linux SocketCAN BCM support for tokio [<img src="https://api.travis-ci.org/marcelbuesing/tokio-socketcan-bcm.svg?branch=master">](https://travis-ci.org/marcelbuesing/tokio-socketcan-bcm)
* [mbr/socketcan](https://github.com/mbr/socketcan-rs) [[socketcan](https://crates.io/crates/socketcan)] - Linux SocketCAN library [<img src="https://api.travis-ci.org/mbr/socketcan-rs.svg?branch=master">](https://travis-ci.org/mbr/socketcan-rs)
* [oefd/tokio-socketcan](https://github.com/oefd/tokio-socketcan) [[tokio-socketcan]](https://crates.io/crates/tokio-socketcan)] - Linux SocketCAN support for tokio based on the socketcan crate
* [Sensirion/lin-bus](https://github.com/Sensirion/lin-bus-rs) [[lin-bus](https://crates.io/crates/lin-bus)] - LIN bus driver traits and protocol implementation [<img src="https://circleci.com/gh/Sensirion/lin-bus-rs.svg?style=svg">](https://circleci.com/gh/Sensirion/lin-bus-rs)
* [canparse](https://crates.io/crates/canparse) — A CAN signal and definition parser [<img src="https://api.travis-ci.org/jmagnuson/canparse.svg?branch=master">](https://travis-ci.org/jmagnuson/canparse)
* [JulianSchmid/someip_parse](https://github.com/JulianSchmid/someip-parse-rs) [[someip_parse](https://crates.io/crates/someip_parse)] — A library for parsing the SOME/IP network protocol (without payload interpretation) [<img src="https://api.travis-ci.org/JulianSchmid/someip-parse-rs.svg?branch=master">](https://travis-ci.org/JulianSchmid/someip-parse-rs)
* [LibreTuner/tuneutils](https://github.com/LibreTuner/tuneutils) [[tuneutils](https://crates.io/crates/tuneutils)] — Utilities for interfacing with, diagnosing, and tuning car
* [marcelbuesing/can-dbc](https://github.com/marcelbuesing/can-dbc) [[can-dbc](https://crates.io/crates/can-dbc)] — A parser for the DBC format [<img src="https://api.travis-ci.org/marcelbuesing/can-dbc.svg?branch=dev">](https://travis-ci.org/marcelbuesing/can-dbc)
* [marcelbuesing/tokio-socketcan-bcm](https://github.com/marcelbuesing/tokio-socketcan-bcm) [[tokio-socketcan-bcm](https://crates.io/crates/tokio-socketcan-bcm)] — Linux SocketCAN BCM support for tokio [<img src="https://api.travis-ci.org/marcelbuesing/tokio-socketcan-bcm.svg?branch=master">](https://travis-ci.org/marcelbuesing/tokio-socketcan-bcm)
* [mbr/socketcan](https://github.com/mbr/socketcan-rs) [[socketcan](https://crates.io/crates/socketcan)] — Linux SocketCAN library [<img src="https://api.travis-ci.org/mbr/socketcan-rs.svg?branch=master">](https://travis-ci.org/mbr/socketcan-rs)
* [oefd/tokio-socketcan](https://github.com/oefd/tokio-socketcan) [[tokio-socketcan]](https://crates.io/crates/tokio-socketcan)] — Linux SocketCAN support for tokio based on the socketcan crate
* [Sensirion/lin-bus](https://github.com/Sensirion/lin-bus-rs) [[lin-bus](https://crates.io/crates/lin-bus)] — LIN bus driver traits and protocol implementation [<img src="https://circleci.com/gh/Sensirion/lin-bus-rs.svg?style=svg">](https://circleci.com/gh/Sensirion/lin-bus-rs)
### Bioinformatics
@ -749,7 +748,7 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
### Configuration
* [mehcode/config-rs](https://github.com/mehcode/config-rs) [[config](https://crates.io/crates/config)] — Layered configuration system for Rust applications (with strong support for 12-factor applications). [<img src="https://api.travis-ci.org/mehcode/config-rs.svg?branch=master">](https://travis-ci.org/mehcode/config-rs)
* [Kixunil/configure_me](https://github.com/Kixunil/configure_me) [[configure_me](https://crates.io/crates/configure_me)] - library for processing application configuration easily
* [Kixunil/configure_me](https://github.com/Kixunil/configure_me) [[configure_me](https://crates.io/crates/configure_me)] — library for processing application configuration easily
### Cryptography
@ -785,13 +784,13 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
* [chill-rs/chill](https://github.com/chill-rs/chill) [[couchdb](https://crates.io/crates/chill)] — A Rust client for the CouchDB REST API [<img src="https://api.travis-ci.org/chill-rs/chill.svg?branch=master">](https://travis-ci.org/chill-rs/chill)
* [Sofa](https://github.com/YellowInnovation/sofa) - an interface to CouchDB HTTP REST API for stable rust
* [Sofa](https://github.com/YellowInnovation/sofa) — an interface to CouchDB HTTP REST API for stable rust
* [benashford/rs-es](https://github.com/benashford/rs-es) [[rs-es](https://crates.io/crates/rs-es)] — A Rust client for the [Elastic](https://www.elastic.co/) REST API [<img src="https://api.travis-ci.org/benashford/rs-es.svg?branch=master">](https://travis-ci.org/benashford/rs-es)
* [elastic-rs/elastic-reqwest](https://github.com/elastic-rs/elastic-reqwest) [[elastic_reqwest](https://crates.io/crates/elastic_reqwest)] — A lightweight implementation of the Elasticsearch API based on Reqwest [<img src="https://api.travis-ci.org/elastic-rs/elastic-reqwest.svg">](https://travis-ci.org/elastic-rs/elastic-reqwest)
@ -818,7 +817,7 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
* [ZooKeeper](https://zookeeper.apache.org/)
* [bonifaido/rust-zookeeper](https://github.com/bonifaido/rust-zookeeper) [[zookeeper](https://crates.io/crates/zookeeper)] — A client library for Apache ZooKeeper. [<img src="https://api.travis-ci.org/bonifaido/rust-zookeeper.svg?branch=master">](https://travis-ci.org/bonifaido/rust-zookeeper)
* [PickleDB](https://pythonhosted.org/pickleDB/)
* [seladb/pickledb-rs](https://github.com/seladb/pickledb-rs) - a lightweight and simple key-value store, heavily inspired by Python's PickleDB. [<img src="https://api.travis-ci.org/seladb/pickledb-rs.svg?branch=master">](https://travis-ci.org/seladb/pickledb-rs)
* [seladb/pickledb-rs](https://github.com/seladb/pickledb-rs) — a lightweight and simple key-value store, heavily inspired by Python's PickleDB. [<img src="https://api.travis-ci.org/seladb/pickledb-rs.svg?branch=master">](https://travis-ci.org/seladb/pickledb-rs)
@ -851,7 +850,7 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
* [Nemo157/roaring-rs](https://github.com/Nemo157/roaring-rs) – Roaring Bitmaps in Rust [<img src="https://api.travis-ci.org/Nemo157/roaring-rs.svg?branch=master">](https://travis-ci.org/Nemo157/roaring-rs)
* [orium/rpds](https://github.com/orium/rpds) [[rpds](https://crates.io/crates/rpds)] — Persistent data structures in Rust. [<img src="https://api.travis-ci.org/orium/rpds.svg?branch=master">](https://travis-ci.org/orium/rpds)
* [pop-os/progress-streams](https://github.com/pop-os/progress-streams) — Progress callbacks for types which implement `dyn io::Read` or `dyn io::Write`.
* [whitfin/usher](https://github.com/whitfin/usher) [[usher](https://crates.io/crates/usher)] - Parameterized routing for generic resources in Rust.
* [whitfin/usher](https://github.com/whitfin/usher) [[usher](https://crates.io/crates/usher)] — Parameterized routing for generic resources in Rust.
* [xfix/enum-map](https://github.com/xfix/enum-map) [[enum-map](https://crates.io/crates/enum-map)] — An optimized map implementation for enums using an array to store values. [<img src="https://api.travis-ci.org/xfix/enum-map.svg?branch=master">](https://travis-ci.org/xfix/enum-map)
### Data visualization
@ -1040,14 +1039,14 @@ See also [Are we game yet?](http://arewegameyet.com)
* [autopilot-rs/autopilot-rs](https://github.com/autopilot-rs/autopilot-rs) — A simple, cross-platform GUI automation library for Rust.
* [maps4print/azul](https://github.com/maps4print/azul) — A free, functional, IMGUI-oriented GUI framework for rapid development of desktop applications written in Rust, supported by the Mozilla WebRender rendering engine. [<img src="https://api.travis-ci.org/maps4print/azul.svg?branch=master">](https://travis-ci.org/maps4print/azul)
* [PistonDevelopers/conrod](https://github.com/PistonDevelopers/conrod/) — An easy-to-use, immediate-mode, 2D GUI library written entirely in Rust [<img src="https://api.travis-ci.org/PistonDevelopers/conrod.svg?branch=master">](https://travis-ci.org/PistonDevelopers/conrod)
* [rise-ui](https://github.com/rise-ui/rise) - Simple component-based cross-Platform GUI Toolkit for developing beautiful and user-friendly interfaces.
* [rise-ui](https://github.com/rise-ui/rise) — Simple component-based cross-Platform GUI Toolkit for developing beautiful and user-friendly interfaces.
* [relm](https://github.com/antoyo/relm) — Asynchronous, GTK+-based, GUI library, inspired by Elm [<img src="https://api.travis-ci.org/antoyo/relm.svg?branch=master">](https://travis-ci.org/antoyo/relm)
@ -1125,7 +1124,7 @@ See also [Are we game yet?](http://arewegameyet.com)
* [mattnenterprise/rust-ftp](https://github.com/mattnenterprise/rust-ftp) — an [FTP](https://en.wikipedia.org/wiki/File_Transfer_Protocol) client for Rust [<img src="https://api.travis-ci.org/mattnenterprise/rust-ftp.svg?branch=master">](https://travis-ci.org/mattnenterprise/rust-ftp)
* IPNetwork
* [achanda/ipnetwork](https://github.com/achanda/ipnetwork) — A library to work with IP networks in pure Rust [<img src="https://api.travis-ci.org/achanda/ipnetwork.svg?branch=master">](https://travis-ci.org/achanda/ipnetwork)
* [candrew/netsim](https://github.com/canndrew/netsim) - A Rust library for network simulation and testing [<img src="https://api.travis-ci.org/canndrew/netsim.svg?branch=master">](https://travis-ci.org/canndrew/netsim)
* [candrew/netsim](https://github.com/canndrew/netsim) — A Rust library for network simulation and testing [<img src="https://api.travis-ci.org/canndrew/netsim.svg?branch=master">](https://travis-ci.org/canndrew/netsim)
* Low level
* [libpnet/libpnet](https://github.com/libpnet/libpnet) — A cross-platform, low level networking [<img src="https://api.travis-ci.org/libpnet/libpnet.svg?branch=master">](https://travis-ci.org/libpnet/libpnet)
* [tokio-rs/tokio](https://github.com/tokio-rs/tokio) — A network application framework for rapid development and highly scalable production deployments of clients and servers.
@ -1186,8 +1185,8 @@ See also [Are we game yet?](http://arewegameyet.com)
* Windows
* [retep998/winapi-rs](https://github.com/retep998/winapi-rs) — Windows API bindings [<img src="https://api.travis-ci.org/retep998/winapi-rs.svg?branch=master">](https://travis-ci.org/retep998/winapi-rs)
* FreeBSD
* [fubarnetes/libjail-rs](https://github.com/fubarnetes/libjail-rs/) - Rust implementation of a FreeBSD jail library
* [dlrobertson/capsicum-rs](https://github.com/dlrobertson/capsicum-rs) - Rust bindings for the FreeBSD capsicum framework
* [fubarnetes/libjail-rs](https://github.com/fubarnetes/libjail-rs/) — Rust implementation of a FreeBSD jail library
* [dlrobertson/capsicum-rs](https://github.com/dlrobertson/capsicum-rs) — Rust bindings for the FreeBSD capsicum framework
### Scripting
@ -1203,7 +1202,7 @@ See also [Are we game yet?](http://arewegameyet.com)