diff --git a/Cargo.lock b/Cargo.lock
index 29c119c..c32f836 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -226,6 +226,14 @@ dependencies = [
  "termcolor",
 ]
 
+[[package]]
+name = "everest"
+version = "0.1.0"
+
+[[package]]
+name = "everest-sync"
+version = "0.1.0"
+
 [[package]]
 name = "fastrand"
 version = "1.5.0"
@@ -390,6 +398,10 @@ dependencies = [
  "uuid",
 ]
 
+[[package]]
+name = "himalaya-sync"
+version = "0.1.0"
+
 [[package]]
 name = "hostname"
 version = "0.3.1"
@@ -574,6 +586,14 @@ dependencies = [
  "quoted_printable",
 ]
 
+[[package]]
+name = "makalu"
+version = "0.1.0"
+
+[[package]]
+name = "makalu-sync"
+version = "0.1.0"
+
 [[package]]
 name = "maplit"
 version = "1.0.2"
diff --git a/Cargo.toml b/Cargo.toml
index 2d15d5c..cd627ac 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,4 +1,11 @@
 [workspace]
 members = [
   "email-manager",
+  # "email-synchronizer",
+  # "contact-manager",
+  # "contact-synchronizer",
+  # "calendar-manager",
+  # "calendar-synchronizer",
+  # "task-manager",
+  # "task-synchronizer",
 ]
diff --git a/README.md b/README.md
index 159854e..2335814 100644
--- a/README.md
+++ b/README.md
@@ -1,86 +1,44 @@
-# 📫 Himalaya
-[![gh-actions](https://github.com/soywod/himalaya/workflows/deployment/badge.svg)](https://github.com/soywod/himalaya/actions?query=workflow%3Adeployment)
-[![gh-actions](https://github.com/soywod/himalaya/workflows/tests/badge.svg)](https://github.com/soywod/himalaya/actions?query=workflow%3Atests)
-[![gh-actions](https://github.com/soywod/himalaya/workflows/nix-build/badge.svg)](https://github.com/soywod/himalaya/actions?query=workflow%3Anix-build)
-[![Homebrew](https://img.shields.io/badge/dynamic/json.svg?url=https://formulae.brew.sh/api/formula/himalaya.json&query=$.versions.stable&label=homebrew)](https://formulae.brew.sh/formula/himalaya)
+# :mage: Himalaya
 
-CLI email manager
-
-*The project is under active development. Do not use in production before the
-`v1.0.0` (see the [roadmap](https://github.com/soywod/himalaya/milestone/5)).*
+Himalaya is a suite of independent [Personal Information
+Management](https://en.wikipedia.org/wiki/Personal_information_manager)
+command-line tools.
 
 ![image](https://user-images.githubusercontent.com/10437171/138774902-7b9de5a3-93eb-44b0-8cfb-6d2e11e3b1aa.png)
 
-## Motivation
-
-Bringing emails to the terminal is a *pain*. First, because they are sensitive
-data. Secondly, the existing TUIs ([Mutt](http://www.mutt.org/),
-[NeoMutt](https://neomutt.org/), [Alpine](https://alpine.x10host.com/),
-[aerc](https://aerc-mail.org/)…) are really hard to configure. They require time
-and patience.
-
-The aim of Himalaya is to extract the email logic into a simple (yet solid) CLI
-API that can be used directly from the terminal, from scripts, from UIs…
-Possibilities are endless!
-
-## Installation
-
-```sh
-# As root:
-curl -sSL https://raw.githubusercontent.com/soywod/himalaya/master/install.sh | sudo sh
-
-# As a regular user:
-curl -sSL https://raw.githubusercontent.com/soywod/himalaya/master/install.sh | PREFIX=~/.local sh
-```
-
-*See the [wiki](https://github.com/soywod/himalaya/wiki) for other installation
-methods.*
-
-## Configuration
-
-```toml
-# ~/.config/himalaya/config.toml
-
-name = "Your full name"
-downloads-dir = "/abs/path/to/downloads"
-signature = """
---
-Regards,
-"""
-
-[gmail]
-default = true
-email = "your.email@gmail.com"
-
-imap-host = "imap.gmail.com"
-imap-port = 993
-imap-login = "your.email@gmail.com"
-imap-passwd-cmd = "pass show gmail"
-
-smtp-host = "smtp.gmail.com"
-smtp-port = 465
-smtp-login = "your.email@gmail.com"
-smtp-passwd-cmd = "security find-internet-password -gs gmail -w"
-```
-
-*See the
-[wiki](https://github.com/soywod/himalaya/wiki/Configuration:config-file) for
-all the options.*
-
 ## Features
 
-- Mailbox listing
-- Email listing and filtering
-- Email composition based on `$EDITOR`
-- Email manipulation (copy/move/delete)
-- Multi-accounting
-- IDLE mode for real-time notifications
-- Vim plugin
-- Completions for bash/zsh/fish
-- JSON output
-- …
+### :mailbox: [Email](https://github.com/soywod/himalaya/blob/set-up-multi-crate/email-manager/README.md)
 
-*See the [wiki](https://github.com/soywod/himalaya/wiki) for all the features.*
+Himalaya proposes a command-line API to manage your emails (listing, searching,
+reading, copying, moving, deleting…). It is also shipped with a [Vim
+plugin](https://github.com/soywod/himalaya/blob/set-up-multi-crate/email-manager/vim/README.md).
+A [TUI](https://github.com/soywod/himalaya/pull/155) and an [Emacs
+plugin](https://github.com/soywod/himalaya/issues/142https://github.com/soywod/himalaya/issues/142)
+are in progress by the community. A
+[synchronizer](https://github.com/soywod/himalaya/blob/set-up-multi-crate/email-synchronizer/README.md)
+should also come soon.
+
+### :card_index: [Contact](https://github.com/soywod/himalaya/blob/set-up-multi-crate/contact-manager/README.md) (TODO)
+
+Himalaya plans to propose a command-line API to manage your contacts through
+the [CardDAV](https://en.wikipedia.org/wiki/CardDAV) protocol. It may come in
+the future with a Vim plugin, an Emacs plugin, a TUI and a synchronizer.
+
+### :date: [Calendar](https://github.com/soywod/himalaya/blob/set-up-multi-crate/calendar-manager/README.md) (TODO)
+
+Himalaya plans to propose a command-line API to manage your calendar through
+the [CalDAV](https://en.wikipedia.org/wiki/CalDAV) protocol. It may come in the
+future with a Vim plugin, an Emacs plugin, a TUI and a synchronizer.
+
+### :stopwatch: [Tasks](https://github.com/soywod/himalaya/blob/set-up-multi-crate/task-manager/README.md) (TODO)
+
+Himalaya plans to propose a command-line API to manage your tasks and your time
+through the [CalDAV](https://en.wikipedia.org/wiki/CalDAV) protocol. It may
+come in the future with a Vim plugin, an Emacs plugin, a TUI and a
+synchronizer. The tool already exists in [another
+repository](https://github.com/soywod/unfog): it needs to be rewritten and
+added to the Himalaya suite.
 
 ## Sponsoring
 
@@ -89,13 +47,3 @@ all the options.*
 [![ko-fi](https://img.shields.io/badge/-Ko--fi-ff5e5a?logo=Ko-fi&logoColor=ffffff)](https://ko-fi.com/soywod)
 [![buy-me-a-coffee](https://img.shields.io/badge/-Buy%20Me%20a%20Coffee-ffdd00?logo=Buy%20Me%20A%20Coffee&logoColor=000000)](https://www.buymeacoffee.com/soywod)
 [![liberapay](https://img.shields.io/badge/-Liberapay-f6c915?logo=Liberapay&logoColor=222222)](https://liberapay.com/soywod)
-
-## Credits
-
-- [IMAP RFC3501](https://tools.ietf.org/html/rfc3501)
-- [Iris](https://github.com/soywod/iris.vim), the himalaya predecessor
-- [isync](https://isync.sourceforge.io/), an email synchronizer for offline usage
-- [NeoMutt](https://neomutt.org/), an email terminal user interface
-- [Alpine](http://alpine.x10host.com/alpine/alpine-info/), an other email terminal user interface
-- [mutt-wizard](https://github.com/LukeSmithxyz/mutt-wizard), a tool over NeoMutt and isync
-- [rust-imap](https://github.com/jonhoo/rust-imap), a rust IMAP lib
diff --git a/calendar-manager/Cargo.toml b/calendar-manager/Cargo.toml
new file mode 100644
index 0000000..773f8ca
--- /dev/null
+++ b/calendar-manager/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "makalu"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
diff --git a/calendar-manager/README.md b/calendar-manager/README.md
new file mode 100644
index 0000000..0803956
--- /dev/null
+++ b/calendar-manager/README.md
@@ -0,0 +1,3 @@
+# :date: Makalu
+
+TODO
diff --git a/calendar-manager/src/main.rs b/calendar-manager/src/main.rs
new file mode 100644
index 0000000..b976a3f
--- /dev/null
+++ b/calendar-manager/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    unimplemented!("The calendar manager is not implemented yet.");
+}
diff --git a/calendar-synchronizer/Cargo.toml b/calendar-synchronizer/Cargo.toml
new file mode 100644
index 0000000..e8ceb02
--- /dev/null
+++ b/calendar-synchronizer/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "makalu-sync"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
diff --git a/calendar-synchronizer/README.md b/calendar-synchronizer/README.md
new file mode 100644
index 0000000..424b3a7
--- /dev/null
+++ b/calendar-synchronizer/README.md
@@ -0,0 +1,3 @@
+# :date: :repeat: Makalu synchronizer
+
+TODO
diff --git a/calendar-synchronizer/src/main.rs b/calendar-synchronizer/src/main.rs
new file mode 100644
index 0000000..5c0b198
--- /dev/null
+++ b/calendar-synchronizer/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    unimplemented!("The calendar synchronizer is not implemented yet.");
+}
diff --git a/contact-manager/Cargo.toml b/contact-manager/Cargo.toml
new file mode 100644
index 0000000..381a02e
--- /dev/null
+++ b/contact-manager/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "everest"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
diff --git a/contact-manager/README.md b/contact-manager/README.md
new file mode 100644
index 0000000..ca02fa6
--- /dev/null
+++ b/contact-manager/README.md
@@ -0,0 +1,3 @@
+# :card_index: Everest
+
+TODO
diff --git a/contact-manager/src/main.rs b/contact-manager/src/main.rs
new file mode 100644
index 0000000..b379e2d
--- /dev/null
+++ b/contact-manager/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    unimplemented!("The contact manager is not implemented yet.");
+}
diff --git a/contact-synchronizer/Cargo.toml b/contact-synchronizer/Cargo.toml
new file mode 100644
index 0000000..eacd867
--- /dev/null
+++ b/contact-synchronizer/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "everest-sync"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
diff --git a/contact-synchronizer/README.md b/contact-synchronizer/README.md
new file mode 100644
index 0000000..58acef6
--- /dev/null
+++ b/contact-synchronizer/README.md
@@ -0,0 +1,3 @@
+# :card_index: :repeat: Everest synchronizer
+
+TODO
diff --git a/contact-synchronizer/src/main.rs b/contact-synchronizer/src/main.rs
new file mode 100644
index 0000000..ecef320
--- /dev/null
+++ b/contact-synchronizer/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    unimplemented!("The contact synchronizer is not implemented yet.");
+}
diff --git a/email-manager/Cargo.toml b/email-manager/Cargo.toml
index 9e19b97..e4c29d1 100644
--- a/email-manager/Cargo.toml
+++ b/email-manager/Cargo.toml
@@ -4,6 +4,7 @@ description = "CLI email manager"
 version = "0.5.1"
 authors = ["soywod <clement.douin@posteo.net>"]
 edition = "2018"
+default-run = "himalaya"
 
 [dependencies]
 ammonia = "3.1.2"
diff --git a/email-manager/README.md b/email-manager/README.md
new file mode 100644
index 0000000..6dbb13b
--- /dev/null
+++ b/email-manager/README.md
@@ -0,0 +1,92 @@
+# :mailbox: Himalaya [![Homebrew](https://img.shields.io/badge/dynamic/json.svg?url=https://formulae.brew.sh/api/formula/himalaya.json&query=$.versions.stable&label=homebrew)](https://formulae.brew.sh/formula/himalaya)
+
+![image](https://user-images.githubusercontent.com/10437171/138774902-7b9de5a3-93eb-44b0-8cfb-6d2e11e3b1aa.png)
+
+## Motivation
+
+Bringing emails to the terminal is a *pain*. First, because they are sensitive
+data. Secondly, the existing TUIs ([Mutt](http://www.mutt.org/),
+[NeoMutt](https://neomutt.org/), [Alpine](https://alpine.x10host.com/),
+[aerc](https://aerc-mail.org/)…) are really hard to configure. They require time
+and patience.
+
+The aim of Himalaya is to extract the email logic into a simple (yet solid) CLI
+API that can be used directly from the terminal, from scripts, from UIs…
+Possibilities are endless!
+
+## Installation
+
+```sh
+# As root:
+curl -sSL https://raw.githubusercontent.com/soywod/himalaya/master/email-manager/install.sh | sudo sh
+
+# As a regular user:
+curl -sSL https://raw.githubusercontent.com/soywod/himalaya/master/email-manager/install.sh | PREFIX=~/.local sh
+```
+
+*See the [wiki](https://github.com/soywod/himalaya/wiki) for other installation
+methods.*
+
+## Configuration
+
+```toml
+# ~/.config/himalaya/config.toml
+
+name = "Your full name"
+downloads-dir = "/abs/path/to/downloads"
+signature = """
+--
+Regards,
+"""
+
+[gmail]
+default = true
+email = "your.email@gmail.com"
+
+imap-host = "imap.gmail.com"
+imap-port = 993
+imap-login = "your.email@gmail.com"
+imap-passwd-cmd = "pass show gmail"
+
+smtp-host = "smtp.gmail.com"
+smtp-port = 465
+smtp-login = "your.email@gmail.com"
+smtp-passwd-cmd = "security find-internet-password -gs gmail -w"
+```
+
+*See the
+[wiki](https://github.com/soywod/himalaya/wiki/Configuration:config-file) for
+all the options.*
+
+## Features
+
+- Mailbox listing
+- Email listing and filtering
+- Email composition based on `$EDITOR`
+- Email manipulation (copy/move/delete)
+- Multi-accounting
+- IDLE mode for real-time notifications
+- Vim plugin
+- Completions for bash/zsh/fish
+- JSON output
+- …
+
+*See the [wiki](https://github.com/soywod/himalaya/wiki) for all the features.*
+
+## Sponsoring
+
+[![github](https://img.shields.io/badge/-GitHub%20Sponsors-fafbfc?logo=GitHub%20Sponsors)](https://github.com/sponsors/soywod)
+[![paypal](https://img.shields.io/badge/-PayPal-0079c1?logo=PayPal&logoColor=ffffff)](https://www.paypal.com/paypalme/soywod)
+[![ko-fi](https://img.shields.io/badge/-Ko--fi-ff5e5a?logo=Ko-fi&logoColor=ffffff)](https://ko-fi.com/soywod)
+[![buy-me-a-coffee](https://img.shields.io/badge/-Buy%20Me%20a%20Coffee-ffdd00?logo=Buy%20Me%20A%20Coffee&logoColor=000000)](https://www.buymeacoffee.com/soywod)
+[![liberapay](https://img.shields.io/badge/-Liberapay-f6c915?logo=Liberapay&logoColor=222222)](https://liberapay.com/soywod)
+
+## Credits
+
+- [IMAP RFC3501](https://tools.ietf.org/html/rfc3501)
+- [Iris](https://github.com/soywod/iris.vim), the himalaya predecessor
+- [isync](https://isync.sourceforge.io/), an email synchronizer for offline usage
+- [NeoMutt](https://neomutt.org/), an email terminal user interface
+- [Alpine](http://alpine.x10host.com/alpine/alpine-info/), an other email terminal user interface
+- [mutt-wizard](https://github.com/LukeSmithxyz/mutt-wizard), a tool over NeoMutt and isync
+- [rust-imap](https://github.com/jonhoo/rust-imap), a rust IMAP lib
diff --git a/email-synchronizer/Cargo.toml b/email-synchronizer/Cargo.toml
new file mode 100644
index 0000000..7d72047
--- /dev/null
+++ b/email-synchronizer/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "himalaya-sync"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
diff --git a/email-synchronizer/README.md b/email-synchronizer/README.md
new file mode 100644
index 0000000..af5a45e
--- /dev/null
+++ b/email-synchronizer/README.md
@@ -0,0 +1,3 @@
+# :mailbox: :repeat: Himalaya synchronizer
+
+TODO
diff --git a/email-synchronizer/src/main.rs b/email-synchronizer/src/main.rs
new file mode 100644
index 0000000..97de372
--- /dev/null
+++ b/email-synchronizer/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    unimplemented!("The email synchronizer is not implemented yet.");
+}
diff --git a/task-manager/Cargo.toml b/task-manager/Cargo.toml
new file mode 100644
index 0000000..f4229b4
--- /dev/null
+++ b/task-manager/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "lhotse"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
diff --git a/task-manager/README.md b/task-manager/README.md
new file mode 100644
index 0000000..96ed25e
--- /dev/null
+++ b/task-manager/README.md
@@ -0,0 +1,3 @@
+# :stopwatch: Lhotse
+
+TODO
diff --git a/task-manager/src/main.rs b/task-manager/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/task-manager/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}
diff --git a/task-synchronizer/Cargo.toml b/task-synchronizer/Cargo.toml
new file mode 100644
index 0000000..4d7bb86
--- /dev/null
+++ b/task-synchronizer/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "lhotse-sync"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
diff --git a/task-synchronizer/README.md b/task-synchronizer/README.md
new file mode 100644
index 0000000..c290b78
--- /dev/null
+++ b/task-synchronizer/README.md
@@ -0,0 +1,3 @@
+# :stopwatch: :repeat: Lhotse synchronizer
+
+TODO
diff --git a/task-synchronizer/src/main.rs b/task-synchronizer/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/task-synchronizer/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}