diff --git a/.gitignore b/.gitignore
index 53eaa21..bc0c7f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
-/target
-**/*.rs.bk
+/.idea/
+
+/target/
+*.rs.bk
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..a990842
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,318 @@
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diff --git a/Cargo.toml b/Cargo.toml
index 6196139..d164ca4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,27 @@
 [package]
 name = "shrug"
-version = "0.1.0"
+version = "0.1.0-pre"
 authors = ["Diogo Sousa <diogogsousa@gmail.com>"]
+
 edition = "2018"
 
+homepage = "https://github.com/orium/shrug"
+repository = "https://github.com/orium/shrug"
+readme = "README.md"
+
+license = "MPL-2.0"
+
+# What to include when packaging.
+include = [
+    "/src/**/*.rs",
+    "/Cargo.toml",
+    "/LICENSE.md",
+    "/README.md",
+    "/release-notes.md",
+]
+
 [dependencies]
+gtk = "0.7"
+
+[features]
+fatal-warnings = []
diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 0000000..cd44203
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,355 @@
+Mozilla Public License Version 2.0
+==================================
+
+### 1. Definitions
+
+**1.1. “Contributor”**
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+**1.2. “Contributor Version”**
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+**1.3. “Contribution”**
+    means Covered Software of a particular Contributor.
+
+**1.4. “Covered Software”**
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+**1.5. “Incompatible With Secondary Licenses”**
+    means
+
+* **(a)** that the initial Contributor has attached the notice described
+    in Exhibit B to the Covered Software; or
+* **(b)** that the Covered Software was made available under the terms of
+    version 1.1 or earlier of the License, but not also under the
+    terms of a Secondary License.
+
+**1.6. “Executable Form”**
+    means any form of the work other than Source Code Form.
+
+**1.7. “Larger Work”**
+    means a work that combines Covered Software with other material, in
+    a separate file or files, that is not Covered Software.
+
+**1.8. “License”**
+    means this document.
+
+**1.9. “Licensable”**
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+**1.10. “Modifications”**
+    means any of the following:
+
+* **(a)** any file in Source Code Form that results from an addition to,
+    deletion from, or modification of the contents of Covered
+    Software; or
+* **(b)** any new file in Source Code Form that contains any Covered
+    Software.
+
+**1.11. “Patent Claims” of a Contributor**
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+**1.12. “Secondary License”**
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+**1.13. “Source Code Form”**
+    means the form of the work preferred for making modifications.
+
+**1.14. “You” (or “Your”)**
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, “You” includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, “control” means **(a)** the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or **(b)** ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+
+### 2. License Grants and Conditions
+
+#### 2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+* **(a)** under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+* **(b)** under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+#### 2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+#### 2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+* **(a)** for any code that a Contributor has removed from Covered Software;
+    or
+* **(b)** for infringements caused by: **(i)** Your and any other third party's
+    modifications of Covered Software, or **(ii)** the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+* **(c)** under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+#### 2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+#### 2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+#### 2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+#### 2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+
+### 3. Responsibilities
+
+#### 3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+#### 3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+* **(a)** such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+* **(b)** You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+#### 3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+#### 3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+#### 3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+
+### 4. Inability to Comply Due to Statute or Regulation
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: **(a)** comply with
+the terms of this License to the maximum extent possible; and **(b)**
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+
+### 5. Termination
+
+**5.1.** The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated **(a)** provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and **(b)** on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+**5.2.** If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+**5.3.** In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+
+### 6. Disclaimer of Warranty
+
+> Covered Software is provided under this License on an “as is”
+> basis, without warranty of any kind, either expressed, implied, or
+> statutory, including, without limitation, warranties that the
+> Covered Software is free of defects, merchantable, fit for a
+> particular purpose or non-infringing. The entire risk as to the
+> quality and performance of the Covered Software is with You.
+> Should any Covered Software prove defective in any respect, You
+> (not any Contributor) assume the cost of any necessary servicing,
+> repair, or correction. This disclaimer of warranty constitutes an
+> essential part of this License. No use of any Covered Software is
+> authorized under this License except under this disclaimer.
+
+### 7. Limitation of Liability
+
+> Under no circumstances and under no legal theory, whether tort
+> (including negligence), contract, or otherwise, shall any
+> Contributor, or anyone who distributes Covered Software as
+> permitted above, be liable to You for any direct, indirect,
+> special, incidental, or consequential damages of any character
+> including, without limitation, damages for lost profits, loss of
+> goodwill, work stoppage, computer failure or malfunction, or any
+> and all other commercial damages or losses, even if such party
+> shall have been informed of the possibility of such damages. This
+> limitation of liability shall not apply to liability for death or
+> personal injury resulting from such party's negligence to the
+> extent applicable law prohibits such limitation. Some
+> jurisdictions do not allow the exclusion or limitation of
+> incidental or consequential damages, so this exclusion and
+> limitation may not apply to You.
+
+
+### 8. Litigation
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+
+### 9. Miscellaneous
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+
+### 10. Versions of the License
+
+#### 10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+#### 10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+#### 10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+#### 10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+## Exhibit A - Source Code Form License Notice
+
+    This Source Code Form is subject to the terms of the Mozilla Public
+    License, v. 2.0. If a copy of the MPL was not distributed with this
+    file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+## Exhibit B - “Incompatible With Secondary Licenses” Notice
+
+    This Source Code Form is "Incompatible With Secondary Licenses", as
+    defined by the Mozilla Public License, v. 2.0.
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..6ccd056 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,12 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#![cfg_attr(feature = "fatal-warnings", deny(warnings))]
+#![deny(clippy::correctness)]
+#![warn(clippy::pedantic)]
+
 fn main() {
     println!("Hello, world!");
 }
diff --git a/tools/check.sh b/tools/check.sh
new file mode 100755
index 0000000..cf7876a
--- /dev/null
+++ b/tools/check.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+set -e
+
+cd $(dirname "$0")
+cd "$(git rev-parse --show-toplevel)"
+
+source "tools/utils.sh"
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m'
+
+function on_failure {
+    echo >&2
+    echo -e "${RED}Whoopsie-daisy: something failed!$NC" >&2
+}
+
+assert_installed "cargo-deadlinks"
+assert_installed "cargo-fmt"
+
+trap on_failure ERR
+
+echo 'Building:'
+cargo build --features fatal-warnings --all-targets
+echo 'Testing:'
+cargo test  --features fatal-warnings
+echo 'Checking documentation:'
+cargo doc --features fatal-warnings
+
+echo 'Checking links:'
+cargo deadlinks
+
+echo 'Checking packaging:'
+cargo package --allow-dirty
+echo 'Checking code style:'
+cargo fmt -- --check
+
+echo
+echo -e "${GREEN}Everything looks lovely!$NC"
+
+exit 0
diff --git a/tools/release.sh b/tools/release.sh
new file mode 100755
index 0000000..b9aac57
--- /dev/null
+++ b/tools/release.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+set -e
+
+cd $(dirname "$0")
+cd "$(git rev-parse --show-toplevel)"
+
+source "tools/utils.sh"
+
+function set_version {
+    local version=$1
+
+    sed -i "0,/version = .*$/s//version = \"$version\"/" Cargo.toml
+}
+
+if [ $(git symbolic-ref --short HEAD) != master ]; then
+    echo "Not in master branch." >&2
+    exit 1
+fi
+
+if [ $(git status --porcelain | wc -l) -ne 0 ]; then
+    echo "Working directory is not clean." >&2
+    exit 1
+fi
+
+echo "Current version is $(project_version)."
+
+echo -n "Which version do you want to release? "
+read release_version
+
+if ! grep "^## " release-notes.md | head -1 | grep --silent "^## $release_version$"; then
+    echo "You forgot to update the release notes." >&2
+    exit 1
+fi
+
+echo -n "Which will be the next version? "
+read next_version
+
+if ! echo "$next_version" | grep --silent -- "-pre$"; then
+    echo 'Next version must end in `-pre`.' >&2
+fi
+
+echo
+echo "Current version: $(project_version)"
+echo "Release version: $release_version"
+echo "Next version:    $next_version"
+echo
+echo -n 'Does this look right [yes/no]? '
+
+read answer
+
+if [ "$answer" != "yes" ]; then
+    exit 0
+fi
+
+echo -n "Running tests... "
+
+if ! ./tools/check.sh 2>/dev/null > /dev/null; then
+    echo "It failed :(" >&2
+    exit 0
+fi
+
+echo "done."
+
+set_version "$release_version"
+
+git commit -am "Release v${release_version}."
+git tag --sign -a "v${release_version}" -m "$(project_name) version ${release_version}."
+
+set_version "$next_version"
+
+git commit -am "Bump to version $next_version."
+
+echo "Check if everything is alright.  If so do:"
+echo
+echo "  git checkout \"v${release_version}\" && cargo publish && git checkout master && git push --follow-tags"
+echo
diff --git a/tools/utils.sh b/tools/utils.sh
new file mode 100644
index 0000000..c6aadf5
--- /dev/null
+++ b/tools/utils.sh
@@ -0,0 +1,28 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+function assert_installed {
+    local bin="$1"
+
+    if ! [ -x "$(which "$bin" 2> /dev/null)" ]; then
+        echo "error: $bin not installed." >&2
+        exit 1
+    fi
+}
+
+function os {
+    if test -n "$TRAVIS_OS_NAME"; then
+        echo "$TRAVIS_OS_NAME"
+    else
+        echo linux
+    fi
+}
+
+function project_name {
+    cargo pkgid | tac -s'/' | head -1 | cut -d'#' -f1
+}
+
+function project_version {
+    cargo pkgid | tac -s'/' | head -1 | cut -d'#' -f2
+}