diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..de07cb3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.pyc
+*.secret
+__pycache__
diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..9effb7e
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,24 @@
+[[source]]
+
+url = "https://pypi.python.org/simple"
+verify_ssl = true
+name = "pypi"
+
+
+[packages]
+
+certifi = "==2017.11.5"
+chardet = "==3.0.4"
+cssselect = "==1.0.1"
+idna = "==2.6"
+lxml = "==4.1.1"
+"Mastodon.py" = "==1.1.2"
+python-dateutil = "==2.6.1"
+pytz = "==2017.3"
+requests = "==2.18.4"
+"urllib3" = "==1.22"
+youtube_dl = "==2017.11.26"
+
+
+[dev-packages]
+
diff --git a/Pipfile.lock b/Pipfile.lock
new file mode 100644
index 0000000..95737d4
--- /dev/null
+++ b/Pipfile.lock
@@ -0,0 +1,149 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "92031f704dbc95db2569a568270993b26e01987102ae70ed31b5634528cd1a0e"
+        },
+        "host-environment-markers": {
+            "implementation_name": "cpython",
+            "implementation_version": "3.6.4",
+            "os_name": "posix",
+            "platform_machine": "x86_64",
+            "platform_python_implementation": "CPython",
+            "platform_release": "16.7.0",
+            "platform_system": "Darwin",
+            "platform_version": "Darwin Kernel Version 16.7.0: Thu Jan 11 22:59:40 PST 2018; root:xnu-3789.73.8~1/RELEASE_X86_64",
+            "python_full_version": "3.6.4",
+            "python_version": "3.6",
+            "sys_platform": "darwin"
+        },
+        "pipfile-spec": 6,
+        "requires": {},
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.python.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "certifi": {
+            "hashes": [
+                "sha256:244be0d93b71e93fc0a0a479862051414d0e00e16435707e5bf5000f92e04694",
+                "sha256:5ec74291ca1136b40f0379e1128ff80e866597e4e2c1e755739a913bbc3613c0"
+            ],
+            "version": "==2017.11.5"
+        },
+        "chardet": {
+            "hashes": [
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691",
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae"
+            ],
+            "version": "==3.0.4"
+        },
+        "cssselect": {
+            "hashes": [
+                "sha256:4f5f799a1d3182b04814007e9e7fc6c362f4489c7420d6b348cc901ece07ced9",
+                "sha256:73db1c054b9348409e2862fc6c0dde5c4e4fbe4da64c5c5a9e05fbea45744077"
+            ],
+            "version": "==1.0.1"
+        },
+        "idna": {
+            "hashes": [
+                "sha256:8c7309c718f94b3a625cb648ace320157ad16ff131ae0af362c9f21b80ef6ec4",
+                "sha256:2c6a5de3089009e3da7c5dde64a141dbc8551d5b7f6cf4ed7c2568d0cc520a8f"
+            ],
+            "version": "==2.6"
+        },
+        "lxml": {
+            "hashes": [
+                "sha256:41f59cbdab232f11680d5d4dec9f2e6782fd24d78e37ee833447702e34e675f4",
+                "sha256:e7e41d383f19bab9d57f5f3b18d158655bcd682e7e723f441b9e183e1e35a6b5",
+                "sha256:155521c337acecf8202091cff85bb9f709f238130ebadf04280fb1db11f5ad8b",
+                "sha256:d2c985d2460b81c6ca5feb8b86f1bc594ad59405d0bdf68626b85852b701553c",
+                "sha256:950e63387514aa1b881eba5ac6cb2ec51a118b3dafe99dd80ca19d8fb0142f30",
+                "sha256:470d7ce41e8047208ba1a376560bad17f1468df1f3097bc83902b26cfafdbb0c",
+                "sha256:e608839a5ee2180164424ccf279c8e2d9bbe8816d002c58fd97d6b621ba4aa94",
+                "sha256:87a66bcadac270fc010cb029022a93fc722bf1204a8b03e782d4c790f0edf7ca",
+                "sha256:2dedfeeecc2d5a939cf622602f5a1ce443ca82407f386880f739f1a9f08053ad",
+                "sha256:ba05732e4bcf59e948f61588851dcf620fd60d5bbd9d704203e5f59bbaa60219",
+                "sha256:2190266059fec3c5a55f9d6c30532c64c6d414d3228909c0af573fe4907e78d1",
+                "sha256:dd291debfaa535d9cb6cee8d7aca2328775e037d02d13f1634e57f49bc302cc4",
+                "sha256:29a36e354c39b2e24bc4ee103de53417ebb80f976a6ab9e8d093d559e2ac03e1",
+                "sha256:e37427d5a27eefbcfc48847e0b37f348113fac7280bc857421db39ffc6372570",
+                "sha256:b106d4d2383382399ad82108fd187e92f40b1c90f55c2d36bbcb1c44bcf940fc",
+                "sha256:0ee07da52d240f1dc3c83eef5cd5f1b7f018226c1121f2a54d446645779a6d17",
+                "sha256:3b33549fb8f91b38a7500078242b03cca513f3412a2cdae722e89bf83f95971d",
+                "sha256:4c12e90886d9c53ab434c8d0cebea122321cce19614c3c6b6d1a7700d7cc6212",
+                "sha256:79322000279cda10b53c374d53ca632ead3bc51c6aebf8e62c8fa93a4d08b750",
+                "sha256:6cba398eb37e0631e60e0e080c101cfe91769b2c8267105b64b4625e2581ea21",
+                "sha256:49a655956f8de69e1258bc0fcfc43eb3bd1e038655784d77d1869b4b81444e37",
+                "sha256:af8a5373241d09b8fc53e0490e1719ce5dc90a21b19db89b6596c1adcdd52270",
+                "sha256:e6b6698415c7e8d227a47a3b1038e1b37c2b438a1b48c2db7ad9e74ddbcd1149",
+                "sha256:155c916cf2645b4a8f2bd5d09065e92d1b67b8d464bdc001e0b524af84bedf6f",
+                "sha256:fa7320679ced5e25b20203d157280680fc84eb783b6cc650cb0c98e1858b7dd3",
+                "sha256:4187c4b0cefc3353181db048c51f42c489d9ac51e40b86c4851dc0671372971d",
+                "sha256:d5d29663e979e83b3fc361e97200f959cddb3a14797391d15273d84a5a8ae44b",
+                "sha256:940caef1ec7c78e0c34b0f6b94fe42d0f2022915ffc78643d28538a5cfd0f40e"
+            ],
+            "version": "==4.1.1"
+        },
+        "mastodon.py": {
+            "hashes": [
+                "sha256:b356726253291aad33bd64547f4d26721b643d938300b198446060e7d0454fe0",
+                "sha256:54f08160ec3f4da5fd0c23ad185e8079a3c19f6986c2c7a7dcafadbfc2e009e2"
+            ],
+            "version": "==1.1.2"
+        },
+        "python-dateutil": {
+            "hashes": [
+                "sha256:95511bae634d69bc7329ba55e646499a842bc4ec342ad54a8cdb65645a0aad3c",
+                "sha256:891c38b2a02f5bb1be3e4793866c8df49c7d19baabf9c1bad62547e0b4866aca"
+            ],
+            "version": "==2.6.1"
+        },
+        "pytz": {
+            "hashes": [
+                "sha256:80af0f3008046b9975242012a985f04c5df1f01eed4ec1633d56cc47a75a6a48",
+                "sha256:feb2365914948b8620347784b6b6da356f31c9d03560259070b2f30cff3d469d",
+                "sha256:59707844a9825589878236ff2f4e0dc9958511b7ffaae94dc615da07d4a68d33",
+                "sha256:d0ef5ef55ed3d37854320d4926b04a4cb42a2e88f71da9ddfdacfde8e364f027",
+                "sha256:c41c62827ce9cafacd6f2f7018e4f83a6f1986e87bfd000b8cfbd4ab5da95f1a",
+                "sha256:8cc90340159b5d7ced6f2ba77694d946fc975b09f1a51d93f3ce3bb399396f94",
+                "sha256:dd2e4ca6ce3785c8dd342d1853dd9052b19290d5bf66060846e5dc6b8d6667f7",
+                "sha256:699d18a2a56f19ee5698ab1123bbcc1d269d061996aeb1eda6d89248d3542b82",
+                "sha256:fae4cffc040921b8a2d60c6cf0b5d662c1190fe54d718271db4eb17d44a185b7"
+            ],
+            "version": "==2017.3"
+        },
+        "requests": {
+            "hashes": [
+                "sha256:6a1b267aa90cac58ac3a765d067950e7dbbf75b1da07e895d1f594193a40a38b",
+                "sha256:9c443e7324ba5b85070c4a818ade28bfabedf16ea10206da1132edaa6dda237e"
+            ],
+            "version": "==2.18.4"
+        },
+        "six": {
+            "hashes": [
+                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb",
+                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9"
+            ],
+            "version": "==1.11.0"
+        },
+        "urllib3": {
+            "hashes": [
+                "sha256:06330f386d6e4b195fbfc736b297f58c5a892e4440e54d294d7004e3a9bbea1b",
+                "sha256:cc44da8e1145637334317feebd728bd869a35285b93cbb4cca2577da7e62db4f"
+            ],
+            "version": "==1.22"
+        },
+        "youtube-dl": {
+            "hashes": [
+                "sha256:ba5a13abe7a91250ab602616a84841792ba7f92fec5e6a2c02b9f784e6a97d84",
+                "sha256:fc8a5427ff5cb0672b0a081d3e25d0c7e239640a56260b3771bdb43d4fc81511"
+            ],
+            "version": "==2017.11.26"
+        }
+    },
+    "develop": {}
+}
diff --git a/README.md b/README.md
index bf09d4b..e5aa9d5 100644
--- a/README.md
+++ b/README.md
@@ -2,12 +2,19 @@
 
 A Mastodon client that automatically plays your friends' music as they toot links to it.
 
+## Getting started
+
 You'll need `ffplay` from [FFmpeg](https://ffmpeg.org/) to actually play music.
 
 On macOS, `ffplay` is part of the Homebrew ffmpeg package, but you need to build it with `brew install ffmpeg --with-sdl2`.
 
-Use pip to install the Python dependencies, then edit `stream` so it points to your Mastodon instance and run it. You'll need to log in the first time.
+Use `pipenv install` from [Pipenv](https://docs.pipenv.org/) to install the Python dependencies, then edit `stream` so it points to your Mastodon instance.
+
+## Streaming
+
+Use `pipenv run ./stream` to start the stream. You'll need to log in the first time.
 
 Toots that include the hashtag #fediplay and have as their first link something that [youtube-dl](https://rg3.github.io/youtube-dl/) can play, will!
 
 If new #fediplay toots come in while music is playing, they'll be downloaded immediately and queued to be played later.
+
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 5c4316f..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-certifi==2017.11.5
-chardet==3.0.4
-cssselect==1.0.1
-idna==2.6
-lxml==4.1.1
-Mastodon.py==1.1.2
-python-dateutil==2.6.1
-pytz==2017.3
-requests==2.18.4
-six==1.11.0
-urllib3==1.22
-youtube-dl==2017.11.26