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+ "itoa",
+ "num-conv",
+ "powerfmt",
+ "serde",
+ "time-core",
+ "time-macros",
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+[[package]]
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+ "once_cell",
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+ "sharded-slab",
+ "smallvec",
+ "thread_local",
+ "tracing",
+ "tracing-core",
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+ "tracing-serde",
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+[[package]]
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+[[package]]
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+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
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+[[package]]
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+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
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+[[package]]
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+[[package]]
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+[[package]]
+name = "windows_i686_gnullvm"
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+[[package]]
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+[[package]]
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..2697a64
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,27 @@
+[package]
+name = "hyprfocus"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+regex = "1"
+anyhow = "1"
+clap = { version = "4.5", features = ["derive", "cargo"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tokio = { version = "1", features = ["full"] }
+tracing = "0.1.40"
+tracing-subscriber = { version = "0.3.18", features = ["env-filter", "json"] }
+tracing-appender = "0.2.3"
+
+
+[lints.rust]
+unsafe_code = "forbid"
+missing_docs = "allow"
+
+[lints.clippy]
+all = { level = "warn", priority = 1 }
+pedantic = { level = "deny", priority = 0 }
+nursery = { level = "deny", priority = 0 }
diff --git a/LICENSE-APACHE.md b/LICENSE-APACHE.md
new file mode 100644
index 0000000..62ee105
--- /dev/null
+++ b/LICENSE-APACHE.md
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1.  Definitions.
+
+    "License" shall mean the terms and conditions for use, reproduction,
+    and distribution as defined by Sections 1 through 9 of this document.
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+    "Licensor" shall mean the copyright owner or entity authorized by
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+    "Legal Entity" shall mean the union of the acting entity and all
+    other entities that control, are controlled by, or are under common
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+    direction or management of such entity, whether by contract or
+    otherwise, or (ii) ownership of fifty percent (50%) or more of the
+    outstanding shares, or (iii) beneficial ownership of such entity.
+
+    "You" (or "Your") shall mean an individual or Legal Entity
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+    "Source" form shall mean the preferred form for making modifications,
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+    "Work" shall mean the work of authorship, whether in Source or
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+2.  Grant of Copyright License. Subject to the terms and conditions of
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+4.  Redistribution. You may reproduce and distribute copies of the
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+    (a) You must give any other recipients of the Work or
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+    do not modify the License. You may add Your own attribution
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+    You may add Your own copyright statement to Your modifications and
+    may provide additional or different license terms and conditions
+    for use, reproduction, or distribution of Your modifications, or
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+    reproduction, and distribution of the Work otherwise complies with
+    the conditions stated in this License.
+
+5.  Submission of Contributions. Unless You explicitly state otherwise,
+    any Contribution intentionally submitted for inclusion in the Work
+    by You to the Licensor shall be under the terms and conditions of
+    this License, without any additional terms or conditions.
+    Notwithstanding the above, nothing herein shall supersede or modify
+    the terms of any separate license agreement you may have executed
+    with Licensor regarding such Contributions.
+
+6.  Trademarks. This License does not grant permission to use the trade
+    names, trademarks, service marks, or product names of the Licensor,
+    except as required for reasonable and customary use in describing the
+    origin of the Work and reproducing the content of the NOTICE file.
+
+7.  Disclaimer of Warranty. Unless required by applicable law or
+    agreed to in writing, Licensor provides the Work (and each
+    Contributor provides its Contributions) on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+    implied, including, without limitation, any warranties or conditions
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+    PARTICULAR PURPOSE. You are solely responsible for determining the
+    appropriateness of using or redistributing the Work and assume any
+    risks associated with Your exercise of permissions under this License.
+
+8.  Limitation of Liability. In no event and under no legal theory,
+    whether in tort (including negligence), contract, or otherwise,
+    unless required by applicable law (such as deliberate and grossly
+    negligent acts) or agreed to in writing, shall any Contributor be
+    liable to You for damages, including any direct, indirect, special,
+    incidental, or consequential damages of any character arising as a
+    result of this License or out of the use or inability to use the
+    Work (including but not limited to damages for loss of goodwill,
+    work stoppage, computer failure or malfunction, or any and all
+    other commercial damages or losses), even if such Contributor
+    has been advised of the possibility of such damages.
+
+9.  Accepting Warranty or Additional Liability. While redistributing
+    the Work or Derivative Works thereof, You may choose to offer,
+    and charge a fee for, acceptance of support, warranty, indemnity,
+    or other liability obligations and/or rights consistent with this
+    License. However, in accepting such obligations, You may act only
+    on Your own behalf and on Your sole responsibility, not on behalf
+    of any other Contributor, and only if You agree to indemnify,
+    defend, and hold each Contributor harmless for any liability
+    incurred by, or claims asserted against, such Contributor by reason
+    of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+Copyright 2023 Liam Woodleigh-Hardinge
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/LICENSE-MIT.md b/LICENSE-MIT.md
new file mode 100644
index 0000000..163bdbd
--- /dev/null
+++ b/LICENSE-MIT.md
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Liam Woodleigh-Hardinge
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/bacon.toml b/bacon.toml
new file mode 100644
index 0000000..cf4e8fb
--- /dev/null
+++ b/bacon.toml
@@ -0,0 +1,64 @@
+# This is a configuration file for the bacon tool
+#
+# Bacon repository: https://github.com/Canop/bacon
+# Complete help on configuration: https://dystroy.org/bacon/config/
+
+default_job = "clippy"
+
+[jobs.check]
+command = ["cargo", "check", "--color", "always"]
+need_stdout = false
+
+[jobs.check-all]
+command = ["cargo", "check", "--all-targets", "--color", "always"]
+need_stdout = false
+watch = ["tests", "benches", "examples"]
+
+[jobs.clippy]
+command = [
+    "cargo",
+    "clippy",
+    "--all-targets",
+    "--color",
+    "always",
+    "--",
+    "-W",
+    "clippy::all",
+]
+need_stdout = false
+watch = ["tests", "benches", "examples"]
+
+[jobs.test]
+command = ["cargo", "test", "--color", "always"]
+need_stdout = true
+watch = ["tests"]
+
+[jobs.doc]
+command = ["cargo", "doc", "--color", "always", "--no-deps"]
+need_stdout = false
+
+# If the doc compiles, then it opens in your browser and bacon switches
+# to the previous job
+[jobs.doc-open]
+command = ["cargo", "doc", "--color", "always", "--no-deps", "--open"]
+need_stdout = false
+on_success = "back"                                                    # so that we don't open the browser at each change
+
+# You can run your application and have the result displayed in bacon,
+# *if* it makes sense for this crate. You can run an example the same
+# way. Don't forget the `--color always` part or the errors won't be
+# properly parsed.
+# If you want to pass options to your program, a `--` separator
+# will be needed.
+[jobs.run]
+command = ["cargo", "run", "--color", "always"]
+need_stdout = true
+allow_warnings = true
+watch = ["examples"]
+
+# You may define here keybindings that would be specific to
+# a project, for example a shortcut to launch a specific job.
+# Shortcuts to internal functions (scrolling, toggling, etc.)
+# should go in your personal global prefs.toml file instead.
+[keybindings]
+# alt-m = "job:my-job"
diff --git a/cliff.toml b/cliff.toml
new file mode 100644
index 0000000..91579c8
--- /dev/null
+++ b/cliff.toml
@@ -0,0 +1,83 @@
+# git-cliff ~ default configuration file
+# https://git-cliff.org/docs/configuration
+#
+# Lines starting with "#" are comments.
+# Configuration options are organized into tables and keys.
+# See documentation for more information on available options.
+
+[changelog]
+# changelog header
+header = """
+# Changelog\n
+All notable changes to this project will be documented in this file.\n
+"""
+# template for the changelog body
+# https://keats.github.io/tera/docs/#introduction
+body = """
+{% if version %}\
+    ## [{{ version | trim_start_matches(pat="v") }}] - {{ timestamp | date(format="%Y-%m-%d") }}
+{% else %}\
+    ## [unreleased]
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+    ### {{ group | upper_first }}
+    {% for commit in commits %}
+        - {% if commit.breaking %}[**breaking**] {% endif %}{{ commit.message | upper_first }}\
+    {% endfor %}
+{% endfor %}\n
+"""
+# remove the leading and trailing whitespace from the template
+trim = true
+# changelog footer
+footer = """
+<!-- generated by git-cliff -->
+"""
+# postprocessors
+postprocessors = [
+    # { pattern = '<REPO>', replace = "https://github.com/orhun/git-cliff" }, # replace repository URL
+]
+[git]
+# parse the commits based on https://www.conventionalcommits.org
+conventional_commits = true
+# filter out the commits that are not conventional
+filter_unconventional = true
+# process each line of a commit as an individual commit
+split_commits = false
+# regex for preprocessing the commit messages
+commit_preprocessors = [
+    # { pattern = '\((\w+\s)?#([0-9]+)\)', replace = "([#${2}](<REPO>/issues/${2}))"}, # replace issue numbers
+]
+# regex for parsing and grouping commits
+commit_parsers = [
+    { message = "^feat", group = "Features" },
+    { message = "^fix", group = "Bug Fixes" },
+    { message = "^doc", group = "Documentation" },
+    { message = "^perf", group = "Performance" },
+    { message = "^refactor", group = "Refactor" },
+    { message = "^style", group = "Styling" },
+    { message = "^test", group = "Testing" },
+    { message = "^chore\\(release\\): prepare for", skip = true },
+    { message = "^chore\\(deps\\)", skip = true },
+    { message = "^chore\\(pr\\)", skip = true },
+    { message = "^chore\\(pull\\)", skip = true },
+    { message = "^chore|ci", group = "Miscellaneous Tasks" },
+    { body = ".*security", group = "Security" },
+    { message = "^revert", group = "Revert" },
+]
+# protect breaking changes from being skipped due to matching a skipping commit_parser
+protect_breaking_commits = false
+# filter out the commits that are not matched by commit parsers
+filter_commits = false
+# regex for matching git tags
+tag_pattern = "v[0-9].*"
+
+# regex for skipping tags
+skip_tags = "v0.1.0-beta.1"
+# regex for ignoring tags
+ignore_tags = ""
+# sort the tags topologically
+topo_order = false
+# sort the commits inside sections by oldest/newest order
+sort_commits = "oldest"
+# limit the number of commits included in the changelog.
+# limit_commits = 42
diff --git a/deny.toml b/deny.toml
new file mode 100644
index 0000000..5dfaab2
--- /dev/null
+++ b/deny.toml
@@ -0,0 +1,236 @@
+# This template contains all of the possible sections and their default values
+
+# Note that all fields that take a lint level have these possible values:
+# * deny - An error will be produced and the check will fail
+# * warn - A warning will be produced, but the check will not fail
+# * allow - No warning or error will be produced, though in some cases a note
+# will be
+
+# The values provided in this template are the default values that will be used
+# when any section or field is not specified in your own configuration
+
+# Root options
+
+# The graph table configures how the dependency graph is constructed and thus
+# which crates the checks are performed against
+[graph]
+# If 1 or more target triples (and optionally, target_features) are specified,
+# only the specified targets will be checked when running `cargo deny check`.
+# This means, if a particular package is only ever used as a target specific
+# dependency, such as, for example, the `nix` crate only being used via the
+# `target_family = "unix"` configuration, that only having windows targets in
+# this list would mean the nix crate, as well as any of its exclusive
+# dependencies not shared by any other crates, would be ignored, as the target
+# list here is effectively saying which targets you are building for.
+targets = [
+    # The triple can be any string, but only the target triples built in to
+    # rustc (as of 1.40) can be checked against actual config expressions
+    #"x86_64-unknown-linux-musl",
+    # You can also specify which target_features you promise are enabled for a
+    # particular target. target_features are currently not validated against
+    # the actual valid features supported by the target architecture.
+    #{ triple = "wasm32-unknown-unknown", features = ["atomics"] },
+]
+# When creating the dependency graph used as the source of truth when checks are
+# executed, this field can be used to prune crates from the graph, removing them
+# from the view of cargo-deny. This is an extremely heavy hammer, as if a crate
+# is pruned from the graph, all of its dependencies will also be pruned unless
+# they are connected to another crate in the graph that hasn't been pruned,
+# so it should be used with care. The identifiers are [Package ID Specifications]
+# (https://doc.rust-lang.org/cargo/reference/pkgid-spec.html)
+#exclude = []
+# If true, metadata will be collected with `--all-features`. Note that this can't
+# be toggled off if true, if you want to conditionally enable `--all-features` it
+# is recommended to pass `--all-features` on the cmd line instead
+all-features = false
+# If true, metadata will be collected with `--no-default-features`. The same
+# caveat with `all-features` applies
+no-default-features = false
+# If set, these feature will be enabled when collecting metadata. If `--features`
+# is specified on the cmd line they will take precedence over this option.
+#features = []
+
+# The output table provides options for how/if diagnostics are outputted
+[output]
+# When outputting inclusion graphs in diagnostics that include features, this
+# option can be used to specify the depth at which feature edges will be added.
+# This option is included since the graphs can be quite large and the addition
+# of features from the crate(s) to all of the graph roots can be far too verbose.
+# This option can be overridden via `--feature-depth` on the cmd line
+feature-depth = 1
+
+# This section is considered when running `cargo deny check advisories`
+# More documentation for the advisories section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/advisories/cfg.html
+[advisories]
+# The path where the advisory databases are cloned/fetched into
+#db-path = "$CARGO_HOME/advisory-dbs"
+# The url(s) of the advisory databases to use
+#db-urls = ["https://github.com/rustsec/advisory-db"]
+# A list of advisory IDs to ignore. Note that ignored advisories will still
+# output a note when they are encountered.
+ignore = [
+    #"RUSTSEC-0000-0000",
+    #{ id = "RUSTSEC-0000-0000", reason = "you can specify a reason the advisory is ignored" },
+    #"a-crate-that-is-yanked@0.1.1", # you can also ignore yanked crate versions if you wish
+    #{ crate = "a-crate-that-is-yanked@0.1.1", reason = "you can specify why you are ignoring the yanked crate" },
+]
+# If this is true, then cargo deny will use the git executable to fetch advisory database.
+# If this is false, then it uses a built-in git library.
+# Setting this to true can be helpful if you have special authentication requirements that cargo-deny does not support.
+# See Git Authentication for more information about setting up git authentication.
+#git-fetch-with-cli = true
+
+# This section is considered when running `cargo deny check licenses`
+# More documentation for the licenses section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/licenses/cfg.html
+[licenses]
+# List of explicitly allowed licenses
+# See https://spdx.org/licenses/ for list of possible licenses
+# [possible values: any SPDX 3.11 short identifier (+ optional exception)].
+allow = [
+    "MIT",
+    "Apache-2.0",
+    "Unicode-DFS-2016",
+    #"Apache-2.0 WITH LLVM-exception",
+]
+# The confidence threshold for detecting a license from license text.
+# The higher the value, the more closely the license text must be to the
+# canonical license text of a valid SPDX license file.
+# [possible values: any between 0.0 and 1.0].
+confidence-threshold = 0.8
+# Allow 1 or more licenses on a per-crate basis, so that particular licenses
+# aren't accepted for every possible crate as with the normal allow list
+exceptions = [
+    # Each entry is the crate and version constraint, and its specific allow
+    # list
+    #{ allow = ["Zlib"], crate = "adler32" },
+]
+
+# Some crates don't have (easily) machine readable licensing information,
+# adding a clarification entry for it allows you to manually specify the
+# licensing information
+#[[licenses.clarify]]
+# The package spec the clarification applies to
+#crate = "ring"
+# The SPDX expression for the license requirements of the crate
+#expression = "MIT AND ISC AND OpenSSL"
+# One or more files in the crate's source used as the "source of truth" for
+# the license expression. If the contents match, the clarification will be used
+# when running the license check, otherwise the clarification will be ignored
+# and the crate will be checked normally, which may produce warnings or errors
+# depending on the rest of your configuration
+#license-files = [
+# Each entry is a crate relative path, and the (opaque) hash of its contents
+#{ path = "LICENSE", hash = 0xbd0eed23 }
+#]
+
+[licenses.private]
+# If true, ignores workspace crates that aren't published, or are only
+# published to private registries.
+# To see how to mark a crate as unpublished (to the official registry),
+# visit https://doc.rust-lang.org/cargo/reference/manifest.html#the-publish-field.
+ignore = false
+# One or more private registries that you might publish crates to, if a crate
+# is only published to private registries, and ignore is true, the crate will
+# not have its license(s) checked
+registries = [
+    #"https://sekretz.com/registry
+]
+
+# This section is considered when running `cargo deny check bans`.
+# More documentation about the 'bans' section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/bans/cfg.html
+[bans]
+# Lint level for when multiple versions of the same crate are detected
+multiple-versions = "warn"
+# Lint level for when a crate version requirement is `*`
+wildcards = "allow"
+# The graph highlighting used when creating dotgraphs for crates
+# with multiple versions
+# * lowest-version - The path to the lowest versioned duplicate is highlighted
+# * simplest-path - The path to the version with the fewest edges is highlighted
+# * all - Both lowest-version and simplest-path are used
+highlight = "all"
+# The default lint level for `default` features for crates that are members of
+# the workspace that is being checked. This can be overridden by allowing/denying
+# `default` on a crate-by-crate basis if desired.
+workspace-default-features = "allow"
+# The default lint level for `default` features for external crates that are not
+# members of the workspace. This can be overridden by allowing/denying `default`
+# on a crate-by-crate basis if desired.
+external-default-features = "allow"
+# List of crates that are allowed. Use with care!
+allow = [
+    #"ansi_term@0.11.0",
+    #{ crate = "ansi_term@0.11.0", reason = "you can specify a reason it is allowed" },
+]
+# List of crates to deny
+deny = [
+    #"ansi_term@0.11.0",
+    #{ crate = "ansi_term@0.11.0", reason = "you can specify a reason it is banned" },
+    # Wrapper crates can optionally be specified to allow the crate when it
+    # is a direct dependency of the otherwise banned crate
+    #{ crate = "ansi_term@0.11.0", wrappers = ["this-crate-directly-depends-on-ansi_term"] },
+]
+
+# List of features to allow/deny
+# Each entry the name of a crate and a version range. If version is
+# not specified, all versions will be matched.
+#[[bans.features]]
+#crate = "reqwest"
+# Features to not allow
+#deny = ["json"]
+# Features to allow
+#allow = [
+#    "rustls",
+#    "__rustls",
+#    "__tls",
+#    "hyper-rustls",
+#    "rustls",
+#    "rustls-pemfile",
+#    "rustls-tls-webpki-roots",
+#    "tokio-rustls",
+#    "webpki-roots",
+#]
+# If true, the allowed features must exactly match the enabled feature set. If
+# this is set there is no point setting `deny`
+#exact = true
+
+# Certain crates/versions that will be skipped when doing duplicate detection.
+skip = [
+    #"ansi_term@0.11.0",
+    #{ crate = "ansi_term@0.11.0", reason = "you can specify a reason why it can't be updated/removed" },
+]
+# Similarly to `skip` allows you to skip certain crates during duplicate
+# detection. Unlike skip, it also includes the entire tree of transitive
+# dependencies starting at the specified crate, up to a certain depth, which is
+# by default infinite.
+skip-tree = [
+    #"ansi_term@0.11.0", # will be skipped along with _all_ of its direct and transitive dependencies
+    #{ crate = "ansi_term@0.11.0", depth = 20 },
+]
+
+# This section is considered when running `cargo deny check sources`.
+# More documentation about the 'sources' section can be found here:
+# https://embarkstudios.github.io/cargo-deny/checks/sources/cfg.html
+[sources]
+# Lint level for what to happen when a crate from a crate registry that is not
+# in the allow list is encountered
+unknown-registry = "warn"
+# Lint level for what to happen when a crate from a git repository that is not
+# in the allow list is encountered
+unknown-git = "warn"
+# List of URLs for allowed crate registries. Defaults to the crates.io index
+# if not specified. If it is specified but empty, no registries are allowed.
+allow-registry = ["https://github.com/rust-lang/crates.io-index"]
+# List of URLs for allowed Git repositories
+# allow-git = []
+
+# [sources.allow-org]
+# # 1 or more github.com organizations to allow git sources for
+# github = [""]
+# # 1 or more gitlab.com organizations to allow git sources for
+# gitlab = [""]
+# # 1 or more bitbucket.org organizations to allow git sources for
+# bitbucket = [""]
diff --git a/justfile b/justfile
new file mode 100644
index 0000000..998670d
--- /dev/null
+++ b/justfile
@@ -0,0 +1,27 @@
+#!/usr/bin/env -S just --justfile
+# ^ A shebang isn't required, but allows a justfile to be executed
+#   like a script, with `./justfile test`, for example.
+
+set dotenv-load := true
+
+# Show available commands
+default:
+    @just --list --justfile {{justfile()}}
+
+test-notion:
+ cargo run -- --client "Notion" --launcher "notion-app"
+
+test-brave:
+ cargo run -- --client "Brave-browser" --launcher "brave"
+
+# run various auditing tools to assure we are legal and safe
+audit:
+    cargo deny check advisories bans licenses sources
+
+# Show unused dependencies
+udeps:
+    cargo +nightly udeps
+
+# Run rust tests with `cargo nextest`
+nextest *FLAGS="--all":
+    cargo nextest run {{ FLAGS }}
diff --git a/rustfmt.toml b/rustfmt.toml
new file mode 100644
index 0000000..353a05b
--- /dev/null
+++ b/rustfmt.toml
@@ -0,0 +1,8 @@
+edition = "2021"
+max_width = 100
+comment_width = 80
+wrap_comments = true
+imports_granularity = "Crate"
+use_small_heuristics = "Default"
+group_imports = "StdExternalCrate"
+format_strings = true
diff --git a/src/app_cmds.rs b/src/app_cmds.rs
new file mode 100644
index 0000000..969f637
--- /dev/null
+++ b/src/app_cmds.rs
@@ -0,0 +1,21 @@
+use clap::{crate_version, Arg, Command};
+
+pub const CRATE_VERSION: &str = crate_version!();
+
+pub fn app_cmd() -> Command {
+    Command::new("hyprfocus")
+        .version(CRATE_VERSION)
+        .author("Liam Woodleigh-Hardinge")
+        .about("Focuses windows and launches applications in Hyprland")
+        .arg(
+            Arg::new("client")
+                .short('c')
+                .long("client")
+                .help("The client application class name, found using 'hyprctl clients'"),
+        )
+        .arg(
+            Arg::new("launcher").short('l').long("launcher").help(
+                "The command to launch the client (application) if it is not already running",
+            ),
+        )
+}
diff --git a/src/focus.rs b/src/focus.rs
new file mode 100644
index 0000000..133cf60
--- /dev/null
+++ b/src/focus.rs
@@ -0,0 +1,40 @@
+use anyhow::{Context, Result};
+
+use serde_json::Value;
+use tracing::instrument;
+
+#[instrument(ret, err)]
+pub fn focus_window(window_to_focus: &Value, active_address: &str) -> Result<()> {
+    let window_address = window_to_focus["address"]
+        .as_str()
+        .context("Window address not found")?;
+    if window_address != active_address {
+        focus_window_by_address(window_address)?;
+    }
+    Ok(())
+}
+
+#[instrument(level = "trace", ret, err)]
+pub fn focus_window_by_address(window_address: &str) -> anyhow::Result<()> {
+    crate::execute_hyprctl(&["dispatch", &format!("focuswindow address:{window_address}")])
+}
+
+#[instrument(level = "trace", ret, err)]
+pub fn focus_most_recent_window(windows: &[Value], active_address: &str) -> Result<()> {
+    tracing::info!(?windows);
+    if let Some(most_recent_window_different_to_active_window) = windows
+        .iter()
+        .filter(|window| window["address"].as_str() != Some(active_address))
+        .min_by_key(|window| {
+            window["focusHistoryID"]
+                .as_i64()
+                .expect("expected focusHistoryID to be an i64")
+        })
+    {
+        let window_address = most_recent_window_different_to_active_window["address"]
+            .as_str()
+            .expect("expected to be able to convert the most recent window address to a string");
+        focus_window_by_address(window_address)?;
+    }
+    Ok(())
+}
diff --git a/src/io.rs b/src/io.rs
new file mode 100644
index 0000000..3239c79
--- /dev/null
+++ b/src/io.rs
@@ -0,0 +1,23 @@
+use anyhow::{Context, Result};
+
+use std::process::Command;
+use tracing::instrument;
+
+#[instrument(level = "trace", ret, err)]
+pub fn execute_hyprctl(args: &[&str]) -> Result<()> {
+    Command::new("hyprctl")
+        .args(args)
+        .output()
+        .context("Failed to execute hyprctl")?;
+    Ok(())
+}
+
+#[instrument(level = "trace", ret, err)]
+pub fn launch_application(launcher_command: &str) -> Result<(), anyhow::Error> {
+    Command::new("sh")
+        .arg("-c")
+        .arg(launcher_command)
+        .spawn()
+        .context("Failed to launch the application")?;
+    Ok(())
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..44cdcf2
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,96 @@
+use anyhow::{Context, Result};
+
+use serde_json::Value;
+use std::process::Command;
+use tracing::instrument;
+
+mod app_cmds;
+mod focus;
+mod io;
+mod observability;
+
+use focus::{focus_most_recent_window, focus_window};
+use io::{execute_hyprctl, launch_application};
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    let _non_blocking_writer_guard = observability::setup_tracing()?;
+    let arg_matches = app_cmds::app_cmd().get_matches();
+    let client_name = arg_matches
+        .get_one::<String>("client")
+        .expect("expected to valid 'client name' arg");
+
+    let launcher_command = arg_matches
+        .get_one::<String>("launcher")
+        .expect("expected to valid 'launcher' arg");
+
+    focus_or_launch_app(client_name, launcher_command)?;
+    Ok(())
+}
+
+#[instrument(ret, err)]
+fn get_hyprland_clients_json() -> Result<Value> {
+    let clients_json = Command::new("hyprctl")
+        .args(["clients", "-j"])
+        .output()
+        .context("Failed to get client list from hyprctl")?
+        .stdout;
+
+    serde_json::from_slice(&clients_json).context("Failed to parse clients JSON")
+}
+
+#[instrument(ret, err)]
+fn focus_or_launch_app(client_name: &str, launcher_command: &str) -> Result<()> {
+    let clients: Value = get_hyprland_clients_json()?;
+    let open_windows_for_this_client: Vec<Value> = filter_clients_by_name(&clients, client_name);
+
+    if open_windows_for_this_client.is_empty() {
+        tracing::debug!("No windows open for client '{client_name}'");
+        if launcher_command.is_empty() {
+            tracing::warn!("No launcher command provided");
+            return Ok(());
+        }
+        return launch_application(launcher_command);
+    }
+
+    focus_application(&open_windows_for_this_client)
+}
+
+#[instrument(ret, err)]
+fn focus_application(open_windows_for_this_client: &[Value]) -> anyhow::Result<()> {
+    let active_window = get_active_window_json()?;
+    let active_address = active_window["address"]
+        .as_str()
+        .expect("expected to be able to determine the active window address");
+
+    match open_windows_for_this_client.len() {
+        1 => focus_window(&open_windows_for_this_client[0], active_address)?,
+        _ => focus_most_recent_window(open_windows_for_this_client, active_address)?,
+    }
+
+    Ok(())
+}
+
+#[instrument(level = "debug", ret, err)]
+fn get_active_window_json() -> Result<Value, anyhow::Error> {
+    let active_window_address = Command::new("hyprctl")
+        .args(["activewindow", "-j"])
+        .output()
+        .context("Failed to get active window from hyprctl")?
+        .stdout;
+    let active_window: Value = serde_json::from_slice(&active_window_address)
+        .context("Failed to parse active window JSON")?;
+    Ok(active_window)
+}
+
+#[instrument(level = "trace", ret)]
+fn filter_clients_by_name(clients: &Value, client_name: &str) -> Vec<Value> {
+    let open_windows_for_this_client: Vec<Value> = clients
+        .as_array()
+        .unwrap_or(&vec![])
+        .iter()
+        .filter(|client| client["class"] == client_name)
+        .cloned()
+        .collect();
+    open_windows_for_this_client
+}
diff --git a/src/observability.rs b/src/observability.rs
new file mode 100644
index 0000000..a9a09a3
--- /dev/null
+++ b/src/observability.rs
@@ -0,0 +1,19 @@
+use anyhow::{Context, Result};
+use tracing_appender::{non_blocking::WorkerGuard, rolling};
+use tracing_subscriber::{prelude::*, EnvFilter};
+
+pub fn setup_tracing() -> Result<WorkerGuard> {
+    let file_appender = rolling::daily("/tmp", "HyprFocus.jsonl");
+    let (non_blocking_log_writer, guard) = tracing_appender::non_blocking(file_appender);
+
+    let filter = EnvFilter::from_default_env();
+    let formatting_layer = tracing_subscriber::fmt::layer()
+        .json()
+        .with_writer(non_blocking_log_writer);
+    let subscriber = tracing_subscriber::Registry::default()
+        .with(filter)
+        .with(formatting_layer);
+
+    tracing::subscriber::set_global_default(subscriber).context("Failed to set subscriber")?;
+    Ok(guard)
+}