diff --git a/Cargo.lock b/Cargo.lock
index fa9422ca..303f6d71 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -32,9 +32,9 @@ dependencies = [
 
 [[package]]
 name = "alsa"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75c4da790adcb2ce5e758c064b4f3ec17a30349f9961d3e5e6c9688b052a9e18"
+checksum = "5915f52fe2cf65e83924d037b6c5290b7cee097c6b5c8700746e6168a343fd6b"
 dependencies = [
  "alsa-sys",
  "bitflags",
@@ -141,21 +141,26 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[package]]
 name = "bindgen"
-version = "0.56.0"
+version = "0.53.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2da379dbebc0b76ef63ca68d8fc6e71c0f13e59432e0987e508c1820e6ab5239"
+checksum = "c72a978d268b1d70b0e963217e60fdabd9523a941457a6c42a7315d15c7e89e5"
 dependencies = [
  "bitflags",
  "cexpr",
+ "cfg-if 0.1.10",
  "clang-sys",
+ "clap",
+ "env_logger 0.7.1",
  "lazy_static",
  "lazycell",
+ "log",
  "peeking_take_while",
  "proc-macro2",
  "quote",
  "regex",
  "rustc-hash",
  "shlex",
+ "which",
 ]
 
 [[package]]
@@ -298,15 +303,30 @@ dependencies = [
 
 [[package]]
 name = "clang-sys"
-version = "1.3.0"
+version = "0.29.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa66045b9cb23c2e9c1520732030608b02ee07e5cfaa5a521ec15ded7fa24c90"
+checksum = "fe6837df1d5cba2397b835c8530f51723267e16abbf83892e9e5af4f0e5dd10a"
 dependencies = [
  "glob",
  "libc",
  "libloading",
 ]
 
+[[package]]
+name = "clap"
+version = "2.34.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
+dependencies = [
+ "ansi_term",
+ "atty",
+ "bitflags",
+ "strsim 0.8.0",
+ "textwrap",
+ "unicode-width",
+ "vec_map",
+]
+
 [[package]]
 name = "cocoa"
 version = "0.24.0"
@@ -429,9 +449,9 @@ dependencies = [
 
 [[package]]
 name = "coreaudio-sys"
-version = "0.2.8"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b7e3347be6a09b46aba228d6608386739fb70beff4f61e07422da87b0bb31fa"
+checksum = "17f73df0f29f4c3c374854f076c47dc018f19acaa63538880dba0937ad4fa8d7"
 dependencies = [
  "bindgen",
 ]
@@ -439,8 +459,7 @@ dependencies = [
 [[package]]
 name = "cpal"
 version = "0.13.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98f45f0a21f617cd2c788889ef710b63f075c949259593ea09c826f1e47a2418"
+source = "git+https://github.com/conwayste/cpal?branch=aaron/openbsd_sndio_host#bd1da413a5cad1038152c2f8340e97b946fee162"
 dependencies = [
  "alsa",
  "core-foundation-sys",
@@ -450,11 +469,12 @@ dependencies = [
  "lazy_static",
  "libc",
  "mach",
- "ndk 0.3.0",
- "ndk-glue 0.3.0",
+ "ndk",
+ "ndk-glue",
  "nix",
  "oboe",
  "parking_lot",
+ "sndio-sys",
  "stdweb",
  "thiserror",
  "web-sys",
@@ -538,7 +558,7 @@ dependencies = [
  "ident_case",
  "proc-macro2",
  "quote",
- "strsim",
+ "strsim 0.9.3",
  "syn",
 ]
 
@@ -724,6 +744,19 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
+[[package]]
+name = "env_logger"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
+dependencies = [
+ "atty",
+ "humantime 1.3.0",
+ "log",
+ "regex",
+ "termcolor",
+]
+
 [[package]]
 name = "env_logger"
 version = "0.8.4"
@@ -731,7 +764,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a19187fea3ac7e84da7dacf48de0c45d63c6a76f9490dae389aead16c243fce3"
 dependencies = [
  "atty",
- "humantime",
+ "humantime 2.1.0",
  "log",
  "regex",
  "termcolor",
@@ -744,7 +777,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b2cf0344971ee6c64c31be0d530793fba457d322dfec2810c453d0ef228f9c3"
 dependencies = [
  "atty",
- "humantime",
+ "humantime 2.1.0",
  "log",
  "regex",
  "termcolor",
@@ -1137,6 +1170,15 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "humantime"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
+dependencies = [
+ "quick-error",
+]
+
 [[package]]
 name = "humantime"
 version = "2.1.0"
@@ -1330,11 +1372,11 @@ dependencies = [
 
 [[package]]
 name = "libloading"
-version = "0.7.2"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afe203d669ec979b7128619bae5a63b7b42e9203c1b29146079ee05e2f604b52"
+checksum = "f2b111a074963af1d37a139918ac6d49ad1d0d5e47f72fd55388619691a7d753"
 dependencies = [
- "cfg-if 1.0.0",
+ "cc",
  "winapi 0.3.9",
 ]
 
@@ -1428,18 +1470,6 @@ dependencies = [
  "adler32",
 ]
 
-[[package]]
-name = "ndk"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8794322172319b972f528bf90c6b467be0079f1fa82780ffb431088e741a73ab"
-dependencies = [
- "jni-sys",
- "ndk-sys",
- "num_enum",
- "thiserror",
-]
-
 [[package]]
 name = "ndk"
 version = "0.4.0"
@@ -1453,20 +1483,6 @@ dependencies = [
  "thiserror",
 ]
 
-[[package]]
-name = "ndk-glue"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5caf0c24d51ac1c905c27d4eda4fa0635bbe0de596b8f79235e0b17a4d29385"
-dependencies = [
- "lazy_static",
- "libc",
- "log",
- "ndk 0.3.0",
- "ndk-macro",
- "ndk-sys",
-]
-
 [[package]]
 name = "ndk-glue"
 version = "0.4.0"
@@ -1476,7 +1492,7 @@ dependencies = [
  "lazy_static",
  "libc",
  "log",
- "ndk 0.4.0",
+ "ndk",
  "ndk-macro",
  "ndk-sys",
 ]
@@ -1502,14 +1518,15 @@ checksum = "c44922cb3dbb1c70b5e5f443d63b64363a898564d739ba5198e3a9138442868d"
 
 [[package]]
 name = "nix"
-version = "0.20.0"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa9b4819da1bc61c0ea48b63b7bc8604064dd43013e7cc325df098d49cd7c18a"
+checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
 dependencies = [
  "bitflags",
  "cc",
  "cfg-if 1.0.0",
  "libc",
+ "memoffset",
 ]
 
 [[package]]
@@ -1634,8 +1651,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e15e22bc67e047fe342a32ecba55f555e3be6166b04dd157cd0f803dfa9f48e1"
 dependencies = [
  "jni",
- "ndk 0.4.0",
- "ndk-glue 0.4.0",
+ "ndk",
+ "ndk-glue",
  "num-derive",
  "num-traits",
  "oboe-sys",
@@ -2033,6 +2050,12 @@ dependencies = [
  "quick-protobuf",
 ]
 
+[[package]]
+name = "quick-error"
+version = "1.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
+
 [[package]]
 name = "quick-protobuf"
 version = "0.8.0"
@@ -2359,6 +2382,16 @@ version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ecab6c735a6bb4139c0caafd0cc3635748bbb3acf4550e8138122099251f309"
 
+[[package]]
+name = "sndio-sys"
+version = "0.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0005ce55e70c5a0680a8f2f03d39f6185f7b17206bc784867657ebe938636f90"
+dependencies = [
+ "bindgen",
+ "libc",
+]
+
 [[package]]
 name = "socks"
 version = "0.3.3"
@@ -2400,6 +2433,12 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef5430c8e36b713e13b48a9f709cc21e046723fe44ce34587b73a830203b533e"
 
+[[package]]
+name = "strsim"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
+
 [[package]]
 name = "strsim"
 version = "0.9.3"
@@ -2567,6 +2606,15 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "textwrap"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+dependencies = [
+ "unicode-width",
+]
+
 [[package]]
 name = "thiserror"
 version = "1.0.30"
@@ -2818,6 +2866,12 @@ version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b"
 
+[[package]]
+name = "unicode-width"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"
@@ -2867,6 +2921,12 @@ version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14706d2a800ee8ff38c1d3edb873cd616971ea59eb7c0d046bb44ef59b06a1ae"
 
+[[package]]
+name = "vec_map"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
+
 [[package]]
 name = "version-compare"
 version = "0.0.11"
@@ -2979,6 +3039,15 @@ dependencies = [
  "webpki",
 ]
 
+[[package]]
+name = "which"
+version = "3.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d011071ae14a2f6671d0b74080ae0cd8ebf3a6f8c9589a2cd45f23126fe29724"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "winapi"
 version = "0.2.8"
diff --git a/Cargo.toml b/Cargo.toml
index de74cb55..a2981821 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,3 +15,5 @@ opt-level = 2
 piet = { git = "https://github.com/jpochyla/piet", branch = "ctfont-cache" }
 piet-common = { git = "https://github.com/jpochyla/piet", branch = "ctfont-cache" }
 piet-coregraphics = { git = "https://github.com/jpochyla/piet", branch = "ctfont-cache" }
+# (not merged yet) solve panic at startup: "Add support for OpenBSD platform via sndio host" https://github.com/RustAudio/cpal/pull/493
+cpal = { git = "https://github.com/conwayste/cpal", branch = "aaron/openbsd_sndio_host" }