# Install Deno
curl -fsSL https://deno.land/x/install/install.sh | sh
# Install Aleph
deno install -A -f -n aleph https://deno.land/x/aleph@v0.2.28/cli.ts
# Create Aleph app
aleph init hello
# Move inside the app
cd hello

Check https://deno.land/x/aleph@v0.2.28/cli/dev.ts
error: Uncaught (in promise) TypeError: TS2339 [ERROR]: Property 'utime' does not exist on type 'typeof Deno'. 'Deno.utime' is an unstable API. Did you forget to run with the '--unstable' flag?
 await Deno.utime(dest, statInfo.atime, statInfo.mtime);
 ~~~~~
 at https://deno.land/std@0.89.0/fs/copy.ts:96:16
TS2339 [ERROR]: Property 'utimeSync' does not exist on type 'typeof Deno'. 'Deno.utimeSync' is an unstable API. Did you forget to run with the '--unstable' flag?
 Deno.utimeSync(dest, statInfo.atime, statInfo.mtime);
 ~~~~~~~~~
 at https://deno.land/std@0.89.0/fs/copy.ts:111:10
TS2339 [ERROR]: Property 'utime' does not exist on type 'typeof Deno'. 'Deno.utime' is an unstable API. Did you forget to run with the '--unstable' flag?
 await Deno.utime(dest, statInfo.atime, statInfo.mtime);
 ~~~~~
 at https://deno.land/std@0.89.0/fs/copy.ts:135:16
TS2339 [ERROR]: Property 'utimeSync' does not exist on type 'typeof Deno'. 'Deno.utimeSync' is an unstable API. Did you forget to run with the '--unstable' flag?
 Deno.utimeSync(dest, statInfo.atime, statInfo.mtime);
 ~~~~~~~~~
 at https://deno.land/std@0.89.0/fs/copy.ts:160:10
TS2339 [ERROR]: Property 'utime' does not exist on type 'typeof Deno'. 'Deno.utime' is an unstable API. Did you forget to run with the '--unstable' flag?
 await Deno.utime(dest, srcStatInfo.atime, srcStatInfo.mtime);
 ~~~~~
 at https://deno.land/std@0.89.0/fs/copy.ts:183:16
TS2339 [ERROR]: Property 'utimeSync' does not exist on type 'typeof Deno'. 'Deno.utimeSync' is an unstable API. Did you forget to run with the '--unstable' flag?
 Deno.utimeSync(dest, srcStatInfo.atime, srcStatInfo.mtime);
 ~~~~~~~~~
 at https://deno.land/std@0.89.0/fs/copy.ts:214:10
TS2339 [ERROR]: Property 'systemMemoryInfo' does not exist on type 'typeof Deno'. 'Deno.systemMemoryInfo' is an unstable API. Did you forget to run with the '--unstable' flag?
 return Deno.systemMemoryInfo().free;
 ~~~~~~~~~~~~~~~~
 at https://deno.land/std@0.89.0/node/os.ts:128:15
TS2339 [ERROR]: Property 'loadavg' does not exist on type 'typeof Deno'. 'Deno.loadavg' is an unstable API. Did you forget to run with the '--unstable' flag?
 return Deno.loadavg();
 ~~~~~~~
 at https://deno.land/std@0.89.0/node/os.ts:152:15
TS2339 [ERROR]: Property 'osRelease' does not exist on type 'typeof Deno'. 'Deno.osRelease' is an unstable API. Did you forget to run with the '--unstable' flag?
 return Deno.osRelease();
 ~~~~~~~~~
 at https://deno.land/std@0.89.0/node/os.ts:166:15
TS2339 [ERROR]: Property 'systemMemoryInfo' does not exist on type 'typeof Deno'. 'Deno.systemMemoryInfo' is an unstable API. Did you forget to run with the '--unstable' flag?
 return Deno.systemMemoryInfo().total;
 ~~~~~~~~~~~~~~~~
 at https://deno.land/std@0.89.0/node/os.ts:190:15
TS2339 [ERROR]: Property 'Signal' does not exist on type 'typeof Deno'. 'Deno.Signal' is an unstable API. Did you forget to run with the '--unstable' flag?
 signals: Deno.Signal,
 ~~~~~~
 at https://deno.land/std@0.89.0/node/os.ts:228:17
Found 11 errors.
 const { default: cmd } = await import(`./cli/${command}.ts`)
 ^
 at async main (https://deno.land/x/aleph@v0.2.28/cli.ts:163:30)