diff --git a/Cargo.lock b/Cargo.lock
index 2fe1834..a0e70b9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,130 +1,153 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
 dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr",
 ]
 
 [[package]]
 name = "alsa"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d59934ece7c39ba89796b3cae0e7a56cd0a346a1b6b9194dd3e2a1a48b629249"
 dependencies = [
- "alsa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "bitflags 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "alsa-sys",
+ "bitflags 0.8.2",
+ "libc",
 ]
 
 [[package]]
 name = "alsa-sys"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0edcbbf9ef68f15ae1b620f722180b82a98b6f0628d30baa6b8d2a5abc87d58"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc",
+ "pkg-config",
 ]
 
 [[package]]
 name = "autocfg"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b671c8fb71b457dd4ae18c4ba1e59aa81793daacc361d82fcd410cef0d491875"
 
 [[package]]
 name = "bitflags"
 version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1370e9fc2a6ae53aea8b7a5110edbd08836ed87c88736dfabccade1c2b44bff4"
 
 [[package]]
 name = "bitflags"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d155346769a6855b86399e9bc3814ab343cd3d62c7e985113d46a0ec3c281fd"
 
 [[package]]
 name = "cc"
 version = "1.0.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fc9a35e1f4290eb9e5fc54ba6cf40671ed2a2514c3eeb2b2a908dda2ea5a1be"
 
 [[package]]
 name = "cfg-if"
 version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
 
 [[package]]
 name = "chrono"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "158b0bd7d75cbb6bf9c25967a48a2e9f77da95876b858eadfabaa99cd069de6e"
 dependencies = [
- "num 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num",
+ "time",
 ]
 
 [[package]]
 name = "chrono"
 version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8493056968583b0193c1bb04d6f7684586f3726992d6c573261941a895dbd68"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc",
+ "num-integer",
+ "num-traits",
+ "time",
 ]
 
 [[package]]
 name = "chrono-tz"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0e430fad0384e4defc3dc6b1223d1b886087a8bf9b7080e5ae027f73851ea15"
 dependencies = [
- "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parse-zoneinfo 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.9",
+ "parse-zoneinfo",
 ]
 
 [[package]]
 name = "clap"
 version = "2.33.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
 dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0",
+ "textwrap",
+ "unicode-width",
 ]
 
 [[package]]
 name = "curl"
 version = "0.4.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d08ad3cb89d076a36b0ce5749eec2c9964f70c0c58480ab6b75a91ec4fc206d8"
 dependencies = [
- "curl-sys 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.49 (registry+https://github.com/rust-lang/crates.io-index)",
- "schannel 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "socket2 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl-sys",
+ "libc",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "socket2",
+ "winapi",
 ]
 
 [[package]]
 name = "curl-sys"
 version = "0.4.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "520594da9914c1dc77ce3be450fc1c74fde67c82966d80f8e93c6d460eb0e9ae"
 dependencies = [
- "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.49 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+ "winapi",
 ]
 
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
 [[package]]
 name = "heck"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
 dependencies = [
- "unicode-segmentation 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-segmentation",
 ]
 
 [[package]]
@@ -132,403 +155,407 @@ name = "i3monkit"
 version = "0.1.2"
 source = "git+https://github.com/38/i3monkit#d72d94d103b2621ebfc06c9950d3bba9613e4936"
 dependencies = [
- "alsa 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "chrono 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "curl 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "alsa",
+ "chrono 0.3.0",
+ "curl",
+ "libc",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
 name = "i3xs"
 version = "0.1.0"
 dependencies = [
- "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "chrono-tz 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "i3monkit 0.1.2 (git+https://github.com/38/i3monkit)",
- "num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.9",
+ "chrono-tz",
+ "glob",
+ "i3monkit",
+ "num_cpus",
+ "structopt",
+ "thiserror",
 ]
 
 [[package]]
 name = "itoa"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
 
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
 version = "0.2.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
 
 [[package]]
 name = "libz-sys"
 version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2eb5e43362e38e2bca2fd5f5134c4d4564a23a5c28e9b95411652021a8675ebe"
 dependencies = [
- "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
 ]
 
 [[package]]
 name = "memchr"
 version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 
 [[package]]
 name = "num"
 version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4703ad64153382334aa8db57c637364c322d3372e097840c72000dabdcf6156e"
 dependencies = [
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-iter 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer",
+ "num-iter",
+ "num-traits",
 ]
 
 [[package]]
 name = "num-integer"
 version = "0.1.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b85e541ef8255f6cf42bbfe4ef361305c6c135d10919ecc26126c4e5ae94bc09"
 dependencies = [
- "autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg",
+ "num-traits",
 ]
 
 [[package]]
 name = "num-iter"
 version = "0.1.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76bd5272412d173d6bf9afdf98db8612bbabc9a7a830b7bfc9c188911716132e"
 dependencies = [
- "autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg",
+ "num-integer",
+ "num-traits",
 ]
 
 [[package]]
 name = "num-traits"
 version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ba9a427cfca2be13aa6f6403b0b7e7368fe982bfa16fccc450ce74c46cd9b32"
 dependencies = [
- "autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg",
 ]
 
 [[package]]
 name = "num_cpus"
 version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcef43580c035376c0705c42792c294b66974abbfd2789b511784023f71f3273"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc",
 ]
 
 [[package]]
 name = "openssl-probe"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
 
 [[package]]
 name = "openssl-sys"
 version = "0.9.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4fad9e54bd23bd4cbbe48fdc08a1b8091707ac869ef8508edea2fec77dcc884"
 dependencies = [
- "autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg",
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
 ]
 
 [[package]]
 name = "parse-zoneinfo"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "089a398ccdcdd77b8c38909d5a1e4b67da1bc4c9dbfe6d5b536c828eddb779e5"
 dependencies = [
- "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex",
 ]
 
 [[package]]
 name = "pkg-config"
 version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72d5370d90f49f70bd033c3d75e87fc529fbfff9d6f7cccef07d6170079d91ea"
 
 [[package]]
 name = "proc-macro2"
 version = "0.4.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
 dependencies = [
- "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0",
 ]
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.4"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb37d2df5df740e582f28f8560cf425f52bb267d872fe58358eadb554909f07a"
 dependencies = [
- "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.2.0",
 ]
 
 [[package]]
 name = "quote"
 version = "0.6.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
 dependencies = [
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30",
 ]
 
 [[package]]
 name = "quote"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
 dependencies = [
- "proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.33",
 ]
 
 [[package]]
 name = "redox_syscall"
 version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 
 [[package]]
 name = "regex"
 version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc220bd33bdce8f093101afe22a037b8eb0e5af33592e6a9caafff0d4cb81cbd"
 dependencies = [
- "aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+ "thread_local",
 ]
 
 [[package]]
 name = "regex-syntax"
 version = "0.6.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
 
 [[package]]
 name = "ryu"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c92464b447c0ee8c4fb3824ecc8383b81717b9f1e74ba2e72540aef7b9f82997"
 
 [[package]]
 name = "schannel"
 version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87f550b06b6cba9c8b8be3ee73f391990116bf527450d2556e9b9ce263b9a021"
 dependencies = [
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static",
+ "winapi",
 ]
 
 [[package]]
 name = "serde"
 version = "1.0.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9796c9b7ba2ffe7a9ce53c2287dfc48080f4b2b362fcc245a259b3a7201119dd"
 dependencies = [
- "serde_derive 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
 version = "1.0.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b133a43a1ecd55d4086bd5b4dc6c1751c68b1bfbeba7a5040442022c7e7c02e"
 dependencies = [
- "proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.33",
+ "quote 1.0.2",
+ "syn 1.0.82",
 ]
 
 [[package]]
 name = "serde_json"
 version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "051c49229f282f7c6f3813f8286cc1e3323e8051823fce42c7ea80fe13521704"
 dependencies = [
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa",
+ "ryu",
+ "serde",
 ]
 
 [[package]]
 name = "socket2"
 version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8b74de517221a2cb01a53349cf54182acdc31a074727d3079068448c0676d85"
 dependencies = [
- "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "winapi",
 ]
 
 [[package]]
 name = "structopt"
 version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "16c2cdbf9cc375f15d1b4141bc48aeef444806655cd0e904207edc8d68d86ed7"
 dependencies = [
- "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt-derive 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap",
+ "structopt-derive",
 ]
 
 [[package]]
 name = "structopt-derive"
 version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53010261a84b37689f9ed7d395165029f9cc7abb9f56bbfe86bee2597ed25107"
 dependencies = [
- "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heck",
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "syn 0.15.44",
 ]
 
 [[package]]
 name = "syn"
 version = "0.15.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
 dependencies = [
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "unicode-xid 0.1.0",
 ]
 
 [[package]]
 name = "syn"
-version = "1.0.5"
+version = "1.0.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8daf5dd0bb60cbd4137b1b587d2fc0ae729bc07cf01cd70b36a1ed5ade3b9d59"
 dependencies = [
- "proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.33",
+ "quote 1.0.2",
+ "unicode-xid 0.2.0",
 ]
 
 [[package]]
 name = "textwrap"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 dependencies = [
- "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width",
+]
+
+[[package]]
+name = "thiserror"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+dependencies = [
+ "proc-macro2 1.0.33",
+ "quote 1.0.2",
+ "syn 1.0.82",
 ]
 
 [[package]]
 name = "thread_local"
 version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 dependencies = [
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static",
 ]
 
 [[package]]
 name = "time"
 version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc",
+ "redox_syscall",
+ "winapi",
 ]
 
 [[package]]
 name = "unicode-segmentation"
 version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1967f4cdfc355b37fd76d2a954fb2ed3871034eb4f26d60537d88795cfc332a9"
 
 [[package]]
 name = "unicode-width"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7007dbd421b92cc6e28410fe7362e2e0a2503394908f417b68ec8d1c364c4e20"
 
 [[package]]
 name = "unicode-xid"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 
 [[package]]
 name = "unicode-xid"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
 [[package]]
 name = "vcpkg"
 version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33dd455d0f96e90a75803cfeb7f948768c08d70a6de9a8d2362461935698bf95"
 
 [[package]]
 name = "winapi"
 version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
 dependencies = [
- "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
 ]
 
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[metadata]
-"checksum aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
-"checksum alsa 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "d59934ece7c39ba89796b3cae0e7a56cd0a346a1b6b9194dd3e2a1a48b629249"
-"checksum alsa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b0edcbbf9ef68f15ae1b620f722180b82a98b6f0628d30baa6b8d2a5abc87d58"
-"checksum autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "b671c8fb71b457dd4ae18c4ba1e59aa81793daacc361d82fcd410cef0d491875"
-"checksum bitflags 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1370e9fc2a6ae53aea8b7a5110edbd08836ed87c88736dfabccade1c2b44bff4"
-"checksum bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d155346769a6855b86399e9bc3814ab343cd3d62c7e985113d46a0ec3c281fd"
-"checksum cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)" = "4fc9a35e1f4290eb9e5fc54ba6cf40671ed2a2514c3eeb2b2a908dda2ea5a1be"
-"checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
-"checksum chrono 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "158b0bd7d75cbb6bf9c25967a48a2e9f77da95876b858eadfabaa99cd069de6e"
-"checksum chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e8493056968583b0193c1bb04d6f7684586f3726992d6c573261941a895dbd68"
-"checksum chrono-tz 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e0e430fad0384e4defc3dc6b1223d1b886087a8bf9b7080e5ae027f73851ea15"
-"checksum clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
-"checksum curl 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)" = "d08ad3cb89d076a36b0ce5749eec2c9964f70c0c58480ab6b75a91ec4fc206d8"
-"checksum curl-sys 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)" = "520594da9914c1dc77ce3be450fc1c74fde67c82966d80f8e93c6d460eb0e9ae"
-"checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
-"checksum i3monkit 0.1.2 (git+https://github.com/38/i3monkit)" = "<none>"
-"checksum itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
-"checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
-"checksum libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)" = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
-"checksum libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "2eb5e43362e38e2bca2fd5f5134c4d4564a23a5c28e9b95411652021a8675ebe"
-"checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
-"checksum num 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "4703ad64153382334aa8db57c637364c322d3372e097840c72000dabdcf6156e"
-"checksum num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "b85e541ef8255f6cf42bbfe4ef361305c6c135d10919ecc26126c4e5ae94bc09"
-"checksum num-iter 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "76bd5272412d173d6bf9afdf98db8612bbabc9a7a830b7bfc9c188911716132e"
-"checksum num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "6ba9a427cfca2be13aa6f6403b0b7e7368fe982bfa16fccc450ce74c46cd9b32"
-"checksum num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bcef43580c035376c0705c42792c294b66974abbfd2789b511784023f71f3273"
-"checksum openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
-"checksum openssl-sys 0.9.49 (registry+https://github.com/rust-lang/crates.io-index)" = "f4fad9e54bd23bd4cbbe48fdc08a1b8091707ac869ef8508edea2fec77dcc884"
-"checksum parse-zoneinfo 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "089a398ccdcdd77b8c38909d5a1e4b67da1bc4c9dbfe6d5b536c828eddb779e5"
-"checksum pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)" = "72d5370d90f49f70bd033c3d75e87fc529fbfff9d6f7cccef07d6170079d91ea"
-"checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
-"checksum proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "afdc77cc74ec70ed262262942ebb7dac3d479e9e5cfa2da1841c0806f6cdabcc"
-"checksum quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
-"checksum quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
-"checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
-"checksum regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc220bd33bdce8f093101afe22a037b8eb0e5af33592e6a9caafff0d4cb81cbd"
-"checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
-"checksum ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c92464b447c0ee8c4fb3824ecc8383b81717b9f1e74ba2e72540aef7b9f82997"
-"checksum schannel 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "87f550b06b6cba9c8b8be3ee73f391990116bf527450d2556e9b9ce263b9a021"
-"checksum serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)" = "9796c9b7ba2ffe7a9ce53c2287dfc48080f4b2b362fcc245a259b3a7201119dd"
-"checksum serde_derive 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)" = "4b133a43a1ecd55d4086bd5b4dc6c1751c68b1bfbeba7a5040442022c7e7c02e"
-"checksum serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "051c49229f282f7c6f3813f8286cc1e3323e8051823fce42c7ea80fe13521704"
-"checksum socket2 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)" = "e8b74de517221a2cb01a53349cf54182acdc31a074727d3079068448c0676d85"
-"checksum structopt 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "16c2cdbf9cc375f15d1b4141bc48aeef444806655cd0e904207edc8d68d86ed7"
-"checksum structopt-derive 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "53010261a84b37689f9ed7d395165029f9cc7abb9f56bbfe86bee2597ed25107"
-"checksum syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)" = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
-"checksum syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "66850e97125af79138385e9b88339cbcd037e3f28ceab8c5ad98e64f0f1f80bf"
-"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
-"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
-"checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
-"checksum unicode-segmentation 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1967f4cdfc355b37fd76d2a954fb2ed3871034eb4f26d60537d88795cfc332a9"
-"checksum unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7007dbd421b92cc6e28410fe7362e2e0a2503394908f417b68ec8d1c364c4e20"
-"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-"checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
-"checksum vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "33dd455d0f96e90a75803cfeb7f948768c08d70a6de9a8d2362461935698bf95"
-"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
-"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/Cargo.toml b/Cargo.toml
index 74a88bc..4466524 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,3 +25,5 @@ num_cpus = "1.0"
 structopt = { version = "0.2", default-features = false }
 chrono = "0.4"
 chrono-tz = "0.5"
+glob = "0.3.0"
+thiserror = "1.0.30"
diff --git a/src/bin/home.rs b/src/bin/home.rs
index caac55a..3cf1fc8 100644
--- a/src/bin/home.rs
+++ b/src/bin/home.rs
@@ -7,6 +7,7 @@ use structopt::StructOpt;
 use i3xs::widgets::cpu::CpuWidget;
 use i3xs::widgets::datetime::{DateTimeWidget, TimeColor};
 use i3xs::widgets::network::NetworkSpeedWidget;
+use i3xs::widgets::power::PowerSupply;
 
 #[derive(Debug, StructOpt)]
 #[structopt(name = "i3xs", about = "Custom i3 status bar program.")]
@@ -20,6 +21,7 @@ fn main() {
 
     let opts = Opt::from_args();
 
+    bar.push(PowerSupply::default());
     bar.push(CpuWidget::new());
 
     // Realtime upload/download rate for a interface
diff --git a/src/bin/work.rs b/src/bin/work.rs
index c8a5074..7ac4f3e 100644
--- a/src/bin/work.rs
+++ b/src/bin/work.rs
@@ -7,6 +7,7 @@ use structopt::StructOpt;
 use i3xs::widgets::cpu::CpuWidget;
 use i3xs::widgets::datetime::{DateTimeWidget, TimeColor};
 use i3xs::widgets::network::NetworkSpeedWidget;
+use i3xs::widgets::power::PowerSupply;
 
 #[derive(Debug, StructOpt)]
 #[structopt(name = "i3xs", about = "Custom i3 status bar program.")]
@@ -20,6 +21,7 @@ fn main() {
 
     let opts = Opt::from_args();
 
+    bar.push(PowerSupply::default());
     bar.push(CpuWidget::new());
 
     // Realtime upload/download rate for a interface
diff --git a/src/widgets/mod.rs b/src/widgets/mod.rs
index c15bad1..8f86c73 100644
--- a/src/widgets/mod.rs
+++ b/src/widgets/mod.rs
@@ -1,3 +1,4 @@
 pub mod cpu;
 pub mod datetime;
 pub mod network;
+pub mod power;
diff --git a/src/widgets/power.rs b/src/widgets/power.rs
new file mode 100644
index 0000000..aa97841
--- /dev/null
+++ b/src/widgets/power.rs
@@ -0,0 +1,107 @@
+//! ::::::::::::::
+//! /sys/class/power_supply/hidpp_battery_8/uevent
+//! ::::::::::::::
+//! POWER_SUPPLY_NAME=hidpp_battery_8
+//! POWER_SUPPLY_TYPE=Battery
+//! POWER_SUPPLY_ONLINE=1
+//! POWER_SUPPLY_STATUS=Discharging
+//! POWER_SUPPLY_SCOPE=Device
+//! POWER_SUPPLY_MODEL_NAME=M570
+//! POWER_SUPPLY_MANUFACTURER=Logitech
+//! POWER_SUPPLY_SERIAL_NUMBER=1028-26-d9-b5-38
+//! POWER_SUPPLY_CAPACITY=65
+use std::collections::HashMap;
+
+use glob::glob;
+use i3monkit::{Block, Widget, WidgetUpdate};
+use thiserror::Error;
+
+#[derive(Debug, Default)]
+pub struct PowerSupply {}
+
+const POWER_SUPPLY_GLOB: &'static str = "/sys/class/power_supply/*/uevent";
+
+#[derive(Error, Debug)]
+enum PowerSupplyError {
+    #[error("IO error {0}")]
+    IoError(#[from] std::io::Error),
+    #[error("glob error {0}")]
+    GlobError(#[from] glob::GlobError),
+    #[error("pattern error {0}")]
+    PatternError(#[from] glob::PatternError),
+    #[error("UTF-8 error {0}")]
+    Utf8Error(#[from] std::str::Utf8Error),
+    #[error("parse number error {0}")]
+    ParseIntErro(#[from] std::num::ParseIntError),
+    #[error("parse error {0}")]
+    ParseError(String),
+}
+
+impl PowerSupply {
+    fn get_update(&mut self) -> Result<Vec<String>, PowerSupplyError> {
+        const BATT_100: &'static str = "&#xf240;";
+        const BATT_75: &'static str = "&#xf241;";
+        const BATT_50: &'static str = "&#xf242;";
+        const BATT_25: &'static str = "&#xf243;";
+        const BATT_0: &'static str = "&#xf244;";
+
+        let mut res = Vec::new();
+        for ps in glob(POWER_SUPPLY_GLOB)? {
+            let bytes = std::fs::read(&ps?)?;
+            let values: HashMap<&str, &str> = std::str::from_utf8(&bytes)?
+                .lines()
+                .map(|l| {
+                    l.split_once('=').ok_or(PowerSupplyError::ParseError(
+                        "missing = in uevent line".to_string(),
+                    ))
+                })
+                .collect::<Result<_, _>>()?;
+            let cap: u32 = values
+                .get("POWER_SUPPLY_CAPACITY")
+                .unwrap_or(&"0")
+                .parse()?;
+            let power = if cap >= 90 {
+                BATT_100
+            } else if cap >= 70 {
+                BATT_75
+            } else if cap >= 40 {
+                BATT_50
+            } else if cap >= 20 {
+                BATT_25
+            } else {
+                BATT_0
+            };
+            res.push(format!(
+                "{} {}: <span face=\"pango:Font Awesome 5 Free\">{}</span>",
+                values
+                    .get("POWER_SUPPLY_MANUFACTURER")
+                    .unwrap_or(&"Unknown mfg"),
+                values
+                    .get("POWER_SUPPLY_MODEL_NAME")
+                    .unwrap_or(&"Unknown model"),
+                power,
+            ));
+        }
+        Ok(res)
+    }
+}
+
+impl Widget for PowerSupply {
+    fn update(&mut self) -> Option<WidgetUpdate> {
+        match self.get_update() {
+            Ok(statuses) => {
+                let mut data = Block::new();
+                data.use_pango();
+                for status in statuses {
+                    data.append_full_text(&status);
+                }
+                return Some(WidgetUpdate {
+                    refresh_interval: std::time::Duration::new(1, 0),
+                    data: Some(data),
+                });
+            }
+            Err(err) => eprintln!("Failed to update: {}", err),
+        }
+        None
+    }
+}