diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 534f565..df8abb0 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -8,6 +8,10 @@ on:
       - "CONTRIBUTING.md"
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
   WASI_SDK_VERSION: 20.46gf3a1f8991535
diff --git a/.gitignore b/.gitignore
index b76d7a0..d59c72e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ examples/cli/cli.wasm
 examples/cli/command
 examples/sandbox/sandbox
 examples/sandbox/sandbox.wasm
+wasi-sdk
diff --git a/Cargo.lock b/Cargo.lock
index 23c1b47..ddcb33a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -26,6 +26,21 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "alloc-no-stdlib"
+version = "2.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc7bb162ec39d46ab1ca8c77bf72e890535becd1751bb45f64c597edb4c8c6b3"
+
+[[package]]
+name = "alloc-stdlib"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94fb8275041c72129eb51b7d0322c29b8387a0386127718b096429201a5d6ece"
+dependencies = [
+ "alloc-no-stdlib",
+]
+
 [[package]]
 name = "allocator-api2"
 version = "0.2.21"
@@ -127,6 +142,22 @@ dependencies = [
  "wait-timeout",
 ]
 
+[[package]]
+name = "async-compression"
+version = "0.4.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b37fc50485c4f3f736a4fb14199f6d5f5ba008d7f28fe710306c92780f004c07"
+dependencies = [
+ "brotli",
+ "flate2",
+ "futures-core",
+ "memchr",
+ "pin-project-lite",
+ "tokio",
+ "zstd",
+ "zstd-safe",
+]
+
 [[package]]
 name = "async-trait"
 version = "0.1.83"
@@ -138,6 +169,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
+
 [[package]]
 name = "auditable-serde"
 version = "0.8.0"
@@ -168,7 +205,7 @@ dependencies = [
  "miniz_oxide",
  "object",
  "rustc-demangle",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -177,6 +214,12 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "bincode"
 version = "1.3.3"
@@ -225,6 +268,27 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "brotli"
+version = "8.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf19e729cdbd51af9a397fb9ef8ac8378007b797f8273cfbfdf45dcaa316167b"
+dependencies = [
+ "alloc-no-stdlib",
+ "alloc-stdlib",
+ "brotli-decompressor",
+]
+
+[[package]]
+name = "brotli-decompressor"
+version = "5.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "874bb8112abecc98cbd6d81ea4fa7e94fb9449648c93cc89aa40c81c24d7de03"
+dependencies = [
+ "alloc-no-stdlib",
+ "alloc-stdlib",
+]
+
 [[package]]
 name = "bstr"
 version = "1.10.0"
@@ -336,9 +400,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.1.31"
+version = "1.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2e7962b54006dcfcc61cb72735f4d89bb97061dd6a7ed882ec6b8ee53714c6f"
+checksum = "8e3a13707ac958681c13b39b458c073d0d9bc8a22cb1b2f4c8e55eb72c13f362"
 dependencies = [
  "jobserver",
  "libc",
@@ -429,6 +493,7 @@ dependencies = [
  "clap",
  "component-init",
  "componentize-py-shared",
+ "flate2",
  "fs_extra",
  "futures",
  "heck",
@@ -440,6 +505,7 @@ dependencies = [
  "pretty_env_logger",
  "proptest",
  "pyo3",
+ "reqwest",
  "semver",
  "serde",
  "tar",
@@ -475,6 +541,16 @@ dependencies = [
 name = "componentize-py-shared"
 version = "0.1.0"
 
+[[package]]
+name = "core-foundation"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.7"
@@ -834,9 +910,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.1.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11faaf5a5236997af9848be0bef4db95824b1d534ebc64d0f0c6cf3e67bd38dc"
+checksum = "7ced92e76e966ca2fd84c8f7aa01a4aea65b0eb6648d72f7c8f3e2764a67fece"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
@@ -863,6 +939,21 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f81ec6369c545a7d40e4589b5597581fa1c441fe1cce96dd1de43159910a36a2"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -1032,6 +1123,25 @@ dependencies = [
  "stable_deref_trait",
 ]
 
+[[package]]
+name = "h2"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75249d144030531f8dee69fe9cea04d3edf809a017ae445e2abdff6629e86633"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "http",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.2"
@@ -1066,12 +1176,125 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "http"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4a85d31aea989eead29a3aaf9e1115a180df8282431156e533de47660892565"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
+name = "http-body"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1efedce1fb8e6913f23e0c92de8e62cd5b772a67e7b3946df930a62566c93184"
+dependencies = [
+ "bytes",
+ "http",
+]
+
+[[package]]
+name = "http-body-util"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b021d93e26becf5dc7e1b75b1bed1fd93124b374ceb73f43d4d4eafec896a64a"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "http",
+ "http-body",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "httparse"
+version = "1.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6dbf3de79e51f3d586ab4cb9d5c3e2c14aa28ed23d180cf89b4df0454a69cc87"
+
 [[package]]
 name = "humantime"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
+[[package]]
+name = "hyper"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc2b571658e38e0c01b1fdca3bbbe93c00d3d71693ff2770043f8c29bc7d6f80"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "httparse",
+ "itoa",
+ "pin-project-lite",
+ "smallvec",
+ "tokio",
+ "want",
+]
+
+[[package]]
+name = "hyper-rustls"
+version = "0.27.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d191583f3da1305256f22463b9bb0471acad48a4e534a5218b9963e9c1f59b2"
+dependencies = [
+ "futures-util",
+ "http",
+ "hyper",
+ "hyper-util",
+ "rustls",
+ "rustls-pki-types",
+ "tokio",
+ "tokio-rustls",
+ "tower-service",
+]
+
+[[package]]
+name = "hyper-tls"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
+dependencies = [
+ "bytes",
+ "http-body-util",
+ "hyper",
+ "hyper-util",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+]
+
+[[package]]
+name = "hyper-util"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "497bbc33a26fdd4af9ed9c70d63f61cf56a938375fbb32df34db9b1cd6d643f2"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "http",
+ "http-body",
+ "hyper",
+ "libc",
+ "pin-project-lite",
+ "socket2",
+ "tokio",
+ "tower-service",
+ "tracing",
+]
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.61"
@@ -1227,10 +1450,11 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.72"
+version = "0.3.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a88f1bda2bd75b0452a14784937d796722fdebfe50df998aeb3f0b7603019a9"
+checksum = "1cfaf33c695fc6e08064efbc1f72ec937429614f25eef83af942d0e227c3a28f"
 dependencies = [
+ "once_cell",
  "wasm-bindgen",
 ]
 
@@ -1254,9 +1478,9 @@ checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
 
 [[package]]
 name = "libc"
-version = "0.2.161"
+version = "0.2.172"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e9489c2807c139ffd9c1794f4af0ebe86a828db53ecdc7fea2111d0fed085d1"
+checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
 
 [[package]]
 name = "libm"
@@ -1326,6 +1550,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.8.5"
@@ -1347,6 +1577,23 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87de3442987e9dbec73158d5c715e7ad9072fda936bb03d19d7fa10e00520f0e"
+dependencies = [
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "normalize-line-endings"
 version = "0.3.0"
@@ -1400,6 +1647,50 @@ version = "1.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
 
+[[package]]
+name = "openssl"
+version = "0.10.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fedfea7d58a1f73118430a55da6a286e7b044961736ce96a16a17068ea25e5da"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.107"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8288979acd84749c744a9014b4382d42b8f7b2592847b5afb2ed29e5d16ede07"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.15"
@@ -1766,6 +2057,67 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
+[[package]]
+name = "reqwest"
+version = "0.12.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d19c46a6fdd48bc4dab94b6103fccc55d34c67cc0ad04653aad4ea2a07cd7bbb"
+dependencies = [
+ "async-compression",
+ "base64 0.22.1",
+ "bytes",
+ "encoding_rs",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "http-body-util",
+ "hyper",
+ "hyper-rustls",
+ "hyper-tls",
+ "hyper-util",
+ "ipnet",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "once_cell",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustls-pemfile",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "system-configuration",
+ "tokio",
+ "tokio-native-tls",
+ "tokio-util",
+ "tower",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "windows-registry",
+]
+
+[[package]]
+name = "ring"
+version = "0.17.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4689e6c2294d81e88dc6261c768b63bc4fcdb852be6d1352498b114f61383b7"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "getrandom",
+ "libc",
+ "untrusted",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
@@ -1793,6 +2145,51 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "rustls"
+version = "0.23.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df51b5869f3a441595eac5e8ff14d486ff285f7b8c0df8770e49c3b56351f0f0"
+dependencies = [
+ "once_cell",
+ "rustls-pki-types",
+ "rustls-webpki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-pemfile"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dce314e5fee3f39953d46bb63bb8a46d40c2f8fb7cc5a3b6cab2bde9721d6e50"
+dependencies = [
+ "rustls-pki-types",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "917ce264624a4b4db1c364dcc35bfca9ded014d0a958cd47ad3e960e988ea51c"
+
+[[package]]
+name = "rustls-webpki"
+version = "0.103.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fef8b8769aaccf73098557a87cd1816b4f9c7c16811c9c77142aa695c16f2c03"
+dependencies = [
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
+]
+
+[[package]]
+name = "rustversion"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2"
+
 [[package]]
 name = "rusty-fork"
 version = "0.3.0"
@@ -1811,6 +2208,38 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
+[[package]]
+name = "schannel"
+version = "0.1.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f29ebaa345f945cec9fbbc532eb307f0fdad8161f281b6369539c8d84876b3d"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "security-framework"
+version = "2.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "897b2245f0b511c87893af39b033e5ca9cce68824c4d7e7630b5a1d339658d02"
+dependencies = [
+ "bitflags",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49db231d56a190491cb4aeda9527f1ad45345af50b0851622a7adb8c03b01c32"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.23"
@@ -1861,6 +2290,18 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "sha2"
 version = "0.10.8"
@@ -1917,9 +2358,9 @@ dependencies = [
 
 [[package]]
 name = "socket2"
-version = "0.5.7"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce305eb0b4296696835b71df73eb912e0f1ffd2556a501fcede6e0c50349191c"
+checksum = "4f5fd57c80058a56cf5c777ab8a126398ece8e442983605d280a44ce79d0edef"
 dependencies = [
  "libc",
  "windows-sys 0.52.0",
@@ -1952,6 +2393,12 @@ version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
+[[package]]
+name = "subtle"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
+
 [[package]]
 name = "syn"
 version = "2.0.100"
@@ -1963,6 +2410,36 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bf256ce5efdfa370213c1dabab5935a12e49f2c58d15e9eac2870d3b4f27263"
+dependencies = [
+ "futures-core",
+]
+
+[[package]]
+name = "system-configuration"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c879d448e9d986b661742763247d3693ed13609438cf3d006f51f5368a5ba6b"
+dependencies = [
+ "bitflags",
+ "core-foundation",
+ "system-configuration-sys",
+]
+
+[[package]]
+name = "system-configuration-sys"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e1d1b10ced5ca923a1fcb8d03e96b8d3268065d724548c0211415ff6ac6bac4"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "system-interface"
 version = "0.27.2"
@@ -2102,6 +2579,39 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-rustls"
+version = "0.26.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e727b36a1a0e8b74c376ac2211e40c2c8af09fb4013c60d910495810f008e9b"
+dependencies = [
+ "rustls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.7.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66a539a9ad6d5d281510d5bd368c973d636c02dbf8a67300bfb6b950696ad7df"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "toml"
 version = "0.8.19"
@@ -2142,6 +2652,33 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ea68304e134ecd095ac6c3574494fc62b909f416c4fca77e440530221e549d3d"
 
+[[package]]
+name = "tower"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d039ad9159c98b70ecfd540b2573b97f7f52c3e8d9f8ad57a24b916a536975f9"
+dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project-lite",
+ "sync_wrapper",
+ "tokio",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
+name = "tower-layer"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "121c2a6cda46980bb0fcd1647ffaf6cd3fc79a013de288782836f6df9c48780e"
+
+[[package]]
+name = "tower-service"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
+
 [[package]]
 name = "tracing"
 version = "0.1.40"
@@ -2185,6 +2722,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "try-lock"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
@@ -2236,6 +2779,12 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c7de7d73e1754487cb58364ee906a499937a0dfabd86bcb980fa99ec8c8fa2ce"
 
+[[package]]
+name = "untrusted"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
 [[package]]
 name = "url"
 version = "2.5.2"
@@ -2259,6 +2808,12 @@ version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8c5f0a0af699448548ad1a2fbf920fb4bee257eae39953ba95cb84891a0446a"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.5"
@@ -2274,6 +2829,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "want"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
+dependencies = [
+ "try-lock",
+]
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
@@ -2307,35 +2871,48 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.95"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "128d1e363af62632b8eb57219c8fd7877144af57558fb2ef0368d0087bddeb2e"
+checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
 dependencies = [
  "cfg-if",
  "once_cell",
+ "rustversion",
  "wasm-bindgen-macro",
 ]
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.95"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb6dd4d3ca0ddffd1dd1c9c04f94b868c37ff5fac97c30b97cff2d74fce3a358"
+checksum = "2f0a0651a5c2bc21487bde11ee802ccaf4c51935d0d3d42a6101f98161700bc6"
 dependencies = [
  "bumpalo",
  "log",
- "once_cell",
  "proc-macro2",
  "quote",
  "syn",
  "wasm-bindgen-shared",
 ]
 
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "555d470ec0bc3bb57890405e5d4322cc9ea83cebb085523ced7be4144dac1e61"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "once_cell",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.95"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e79384be7f8f5a9dd5d7167216f022090cf1f9ec128e6e6a482a2cb5c5422c56"
+checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -2343,9 +2920,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.95"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26c6ab57572f7a24a4985830b120de1594465e5d500f24afe89e16b4e833ef68"
+checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2356,9 +2933,12 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.95"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65fc09f10666a9f147042251e0dda9c18f166ff7de300607007e96bdebc1068d"
+checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
+dependencies = [
+ "unicode-ident",
+]
 
 [[package]]
 name = "wasm-convert"
@@ -2519,7 +3099,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a5d75ac36ee28647f6d871a93eefc7edcb729c3096590031ba50857fac44fa8"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.21.7",
  "directories-next",
  "log",
  "postcard",
@@ -2775,6 +3355,16 @@ dependencies = [
  "wast 227.0.1",
 ]
 
+[[package]]
+name = "web-sys"
+version = "0.3.77"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "wiggle"
 version = "30.0.2"
@@ -2872,7 +3462,42 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "33ab640c8d7e35bf8ba19b884ba838ceb4fba93a4e8c65a9059d08afcfc683d9"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-link"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76840935b766e1b0a05c0066835fb9ec80071d4c09a16f6bd5f7e655e3c14c38"
+
+[[package]]
+name = "windows-registry"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4286ad90ddb45071efd1a66dfa43eb02dd0dfbae1545ad6cc3c51cf34d7e8ba3"
+dependencies = [
+ "windows-result",
+ "windows-strings",
+ "windows-targets 0.53.0",
+]
+
+[[package]]
+name = "windows-result"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c64fd11a4fd95df68efcfee5f44a294fe71b8bc6a91993e2791938abcc712252"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
+name = "windows-strings"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87fa48cc5d406560701792be122a10132491cff9d0aeb23583cc2dcafc847319"
+dependencies = [
+ "windows-link",
 ]
 
 [[package]]
@@ -2881,7 +3506,7 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -2890,7 +3515,7 @@ version = "0.59.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -2899,14 +3524,30 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
+ "windows_i686_gnullvm 0.52.6",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1e4c7e8ceaaf9cb7d7507c974735728ab453b67ef8f18febdd7c11fe59dca8b"
+dependencies = [
+ "windows_aarch64_gnullvm 0.53.0",
+ "windows_aarch64_msvc 0.53.0",
+ "windows_i686_gnu 0.53.0",
+ "windows_i686_gnullvm 0.53.0",
+ "windows_i686_msvc 0.53.0",
+ "windows_x86_64_gnu 0.53.0",
+ "windows_x86_64_gnullvm 0.53.0",
+ "windows_x86_64_msvc 0.53.0",
 ]
 
 [[package]]
@@ -2915,48 +3556,96 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
 [[package]]
 name = "windows_i686_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
+
 [[package]]
 name = "winnow"
 version = "0.6.20"
@@ -3136,6 +3825,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "zeroize"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
+
 [[package]]
 name = "zstd"
 version = "0.13.2"
diff --git a/Cargo.toml b/Cargo.toml
index 0371764..adbe7b9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,10 +50,19 @@ semver = "1.0.23"
 
 [dev-dependencies]
 assert_cmd = "2.0.16"
+flate2 = "1.1.1"
 fs_extra = "1.3.0"
 hex = "0.4.3"
 predicates = "3.1.2"
 proptest = "1.5.0"
+reqwest = { version = "0.12.15", features = [
+    "blocking",
+    "brotli",
+    "deflate",
+    "gzip",
+    "zstd",
+] }
+tar = "0.4.42"
 tempfile = "3.13.0"
 
 [build-dependencies]
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index c509fae..fffc239 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -4,6 +4,11 @@
     reason = "some pyo3 macros produce code that does this"
 )]
 #![allow(static_mut_refs, reason = "wit-bindgen produces code that does this")]
+#![allow(unknown_lints)]
+#![allow(
+    unnecessary_transmutes,
+    reason = "nightly warning but not supported on stable"
+)]
 
 use {
     anyhow::{Error, Result},
diff --git a/tests/bindings.rs b/tests/bindings.rs
index 01f591f..3260b63 100644
--- a/tests/bindings.rs
+++ b/tests/bindings.rs
@@ -4,8 +4,10 @@ use std::{
 };
 
 use assert_cmd::{assert::Assert, Command};
+use flate2::bufread::GzDecoder;
 use fs_extra::dir::CopyOptions;
 use predicates::{prelude::predicate, Predicate};
+use tar::Archive;
 
 #[test]
 fn lint_cli_bindings() -> anyhow::Result<()> {
@@ -66,7 +68,7 @@ fn lint_matrix_math_bindings() -> anyhow::Result<()> {
     )?;
     let path = dir.path().join("matrix-math");
 
-    install_numpy(&path);
+    install_numpy(&path)?;
 
     generate_bindings(&path, "matrix-math")?;
 
@@ -165,19 +167,14 @@ fn venv_path(path: &Path) -> PathBuf {
         .join(if cfg!(windows) { "Scripts" } else { "bin" })
 }
 
-fn install_numpy(path: &Path) {
-    Command::new("curl")
-        .current_dir(path)
-        .args([
-            "-OL",
-            "https://github.com/dicej/wasi-wheels/releases/download/v0.0.1/numpy-wasi.tar.gz",
-        ])
-        .assert()
-        .success();
+fn install_numpy(path: &Path) -> anyhow::Result<()> {
+    let bytes = reqwest::blocking::get(
+        "https://github.com/dicej/wasi-wheels/releases/download/v0.0.1/numpy-wasi.tar.gz",
+    )?
+    .error_for_status()?
+    .bytes()?;
 
-    Command::new("tar")
-        .current_dir(path)
-        .args(["xf", "numpy-wasi.tar.gz"])
-        .assert()
-        .success();
+    Archive::new(GzDecoder::new(&bytes[..])).unpack(path)?;
+
+    Ok(())
 }
diff --git a/tests/componentize.rs b/tests/componentize.rs
index 8f854c9..ccc1e55 100644
--- a/tests/componentize.rs
+++ b/tests/componentize.rs
@@ -2,11 +2,15 @@ use std::{
     io::Write,
     path::{Path, PathBuf},
     process::Stdio,
+    thread::sleep,
+    time::Duration,
 };
 
 use assert_cmd::Command;
+use flate2::bufread::GzDecoder;
 use fs_extra::dir::CopyOptions;
-use predicates::prelude::{predicate, PredicateBooleanExt};
+use predicates::prelude::predicate;
+use tar::Archive;
 
 #[test]
 fn cli_example() -> anyhow::Result<()> {
@@ -81,48 +85,32 @@ All mimsy were the borogoves,
         And the mome raths outgrabe.
 ";
 
-    Command::new("curl")
-        .current_dir(&path)
-        .args([
-            "-i",
-            "-H",
-            "content-type: text/plain",
-            "--retry-connrefused",
-            "--retry",
-            "5",
-            "--data-binary",
-            "@-",
-            "http://127.0.0.1:8080/echo",
-        ])
-        .write_stdin(content)
-        .assert()
-        .success()
-        .stdout(predicate::str::ends_with(content));
-
-    Command::new("curl")
-        .current_dir(&path)
-        .args([
-            "-i",
-            "-H",
-            "url: https://webassembly.github.io/spec/core/",
-            "-H",
-            "url: https://www.w3.org/groups/wg/wasm/",
-            "-H",
-            "url: https://bytecodealliance.org/",
-            "--retry-connrefused",
-            "--retry",
-            "5",
-            "http://127.0.0.1:8080/hash-all",
-        ])
-        .assert()
-        .success()
-        .stdout(
-            predicate::str::contains("https://webassembly.github.io/spec/core/:").and(
-                predicate::str::contains("https://bytecodealliance.org/:").and(
-                    predicate::str::contains("https://www.w3.org/groups/wg/wasm/:"),
-                ),
-            ),
-        );
+    let client = reqwest::blocking::Client::new();
+
+    let text = retry(|| {
+        Ok(client
+            .post("http://127.0.0.1:8080/echo")
+            .header("content-type", "text/plain")
+            .body(content)
+            .send()?
+            .error_for_status()?
+            .text()?)
+    })?;
+    assert!(text.ends_with(&content));
+
+    let text = retry(|| {
+        Ok(client
+            .get("http://127.0.0.1:8080/hash-all")
+            .header("url", "https://webassembly.github.io/spec/core/")
+            .header("url", "https://www.w3.org/groups/wg/wasm/")
+            .header("url", "https://bytecodealliance.org/")
+            .send()?
+            .error_for_status()?
+            .text()?)
+    })?;
+    assert!(text.contains("https://webassembly.github.io/spec/core/:"));
+    assert!(text.contains("https://bytecodealliance.org/:"));
+    assert!(text.contains("https://www.w3.org/groups/wg/wasm/:"));
 
     handle.kill()?;
 
@@ -139,7 +127,7 @@ fn matrix_math_example() -> anyhow::Result<()> {
     )?;
     let path = dir.path().join("matrix-math");
 
-    install_numpy(&path);
+    install_numpy(&path)?;
 
     Command::cargo_bin("componentize-py")?
         .current_dir(&path)
@@ -227,7 +215,6 @@ fn sandbox_example() -> anyhow::Result<()> {
     Ok(())
 }
 
-#[cfg(unix)]
 #[test]
 fn tcp_example() -> anyhow::Result<()> {
     let dir = tempfile::tempdir()?;
@@ -254,11 +241,7 @@ fn tcp_example() -> anyhow::Result<()> {
         .success()
         .stdout("Component built successfully\n");
 
-    let mut nc_handle = std::process::Command::new("nc")
-        .current_dir(&path)
-        .args(["-l", "127.0.0.1", "3456"])
-        .stdin(Stdio::piped())
-        .spawn()?;
+    let listener = std::net::TcpListener::bind("127.0.0.1:3456")?;
 
     let tcp_handle = std::process::Command::new("wasmtime")
         .current_dir(&path)
@@ -272,12 +255,10 @@ fn tcp_example() -> anyhow::Result<()> {
         .stdout(Stdio::piped())
         .spawn()?;
 
-    let mut nc_std_in = nc_handle.stdin.take().unwrap();
-
-    nc_std_in.write_all(b"hello")?;
+    let (mut stream, _) = listener.accept()?;
+    stream.write_all(b"hello")?;
 
     let output = tcp_handle.wait_with_output()?;
-    nc_handle.kill()?;
 
     assert_eq!(
         String::from_utf8_lossy(&output.stdout),
@@ -287,24 +268,39 @@ fn tcp_example() -> anyhow::Result<()> {
     Ok(())
 }
 
+fn retry<T>(mut func: impl FnMut() -> anyhow::Result<T>) -> anyhow::Result<T> {
+    let times = 8;
+    for i in 0..times {
+        match func() {
+            Ok(t) => {
+                return Ok(t);
+            }
+            Err(err) => {
+                if i == times - 1 {
+                    return Err(err);
+                } else {
+                    sleep(Duration::from_millis(2_u64.pow(i) * 100));
+                    continue;
+                }
+            }
+        }
+    }
+    unreachable!()
+}
+
 fn venv_path(path: &Path) -> PathBuf {
     path.join(".venv")
         .join(if cfg!(windows) { "Scripts" } else { "bin" })
 }
 
-fn install_numpy(path: &Path) {
-    Command::new("curl")
-        .current_dir(path)
-        .args([
-            "-OL",
-            "https://github.com/dicej/wasi-wheels/releases/download/v0.0.1/numpy-wasi.tar.gz",
-        ])
-        .assert()
-        .success();
+fn install_numpy(path: &Path) -> anyhow::Result<()> {
+    let bytes = reqwest::blocking::get(
+        "https://github.com/dicej/wasi-wheels/releases/download/v0.0.1/numpy-wasi.tar.gz",
+    )?
+    .error_for_status()?
+    .bytes()?;
 
-    Command::new("tar")
-        .current_dir(path)
-        .args(["xf", "numpy-wasi.tar.gz"])
-        .assert()
-        .success();
+    Archive::new(GzDecoder::new(&bytes[..])).unpack(path)?;
+
+    Ok(())
 }