Not able to install it under node < 20.6

[aborruso]

Hi,
I'm trying to install it in my debian 12.

If I run npm init @observablehq

I have the error (and the log) below.

What am I doing wrong?

Thank you

node:internal/errors:496
    ErrorCaptureStackTrace(err);
    ^

TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /home/aborruso/.npm/_npx/f417d01c081ec748/node_modules/@observablehq/framework/bin/observable.ts
    at __node_internal_captureLargerStackTrace (node:internal/errors:496:5)
    at new NodeError (node:internal/errors:405:5)
    at Object.getFileProtocolModuleFormat [as file:] (node:internal/modules/esm/get_format:99:9)
    at defaultGetFormat (node:internal/modules/esm/get_format:142:36)
    at defaultLoad (node:internal/modules/esm/load:91:20)
    at DefaultModuleLoader.load (node:internal/modules/esm/loader:263:26)
    at DefaultModuleLoader.moduleProvider (node:internal/modules/esm/loader:179:22)
    at new ModuleJob (node:internal/modules/esm/module_job:63:26)
    at #createModuleJob (node:internal/modules/esm/loader:203:17)
    at DefaultModuleLoader.getJobFromResolveResult (node:internal/modules/esm/loader:156:34)
    at DefaultModuleLoader.getModuleJob (node:internal/modules/esm/loader:141:17)
    at DefaultModuleLoader.import (node:internal/modules/esm/loader:227:28)
    at importModuleDynamically (node:internal/modules/esm/translators:107:35)
    at importModuleDynamicallyCallback (node:internal/modules/esm/utils:87:14)
    at file:///home/aborruso/.npm/_npx/f417d01c081ec748/node_modules/@observablehq/create/bin/observable-create.js:6:1 {
  code: 'ERR_UNKNOWN_FILE_EXTENSION'
}

Node.js v20.5.1
npm ERR! code 1
npm ERR! path /home/aborruso/lavagna/tmp/obs
npm ERR! command failed
npm ERR! command sh -c observablehq-create

The log

0 verbose cli /usr/bin/node /usr/bin/npm
1 info using [email protected]
2 info using [email protected]
3 timing npm:load:whichnode Completed in 2ms
4 timing config:load:defaults Completed in 0ms
5 timing config:load:file:/usr/lib/node_modules/npm/npmrc Completed in 1ms
6 timing config:load:builtin Completed in 1ms
7 timing config:load:cli Completed in 0ms
8 timing config:load:env Completed in 0ms
9 timing config:load:project Completed in 1ms
10 timing config:load:file:/home/aborruso/.npmrc Completed in 0ms
11 timing config:load:user Completed in 0ms
12 timing config:load:file:/usr/etc/npmrc Completed in 0ms
13 timing config:load:global Completed in 0ms
14 timing config:load:setEnvs Completed in 0ms
15 timing config:load Completed in 4ms
16 timing npm:load:configload Completed in 4ms
17 timing config:load:flatten Completed in 1ms
18 timing npm:load:mkdirpcache Completed in 0ms
19 timing npm:load:mkdirplogs Completed in 0ms
20 verbose title npm init @observablehq
21 verbose argv "init" "@observablehq"
22 timing npm:load:setTitle Completed in 1ms
23 timing npm:load:display Completed in 0ms
24 verbose logfile logs-max:10 dir:/home/aborruso/.npm/_logs/2024-02-16T09_14_56_115Z-
25 verbose logfile /home/aborruso/.npm/_logs/2024-02-16T09_14_56_115Z-debug-0.log
26 timing npm:load:logFile Completed in 4ms
27 timing npm:load:timers Completed in 0ms
28 timing npm:load:configScope Completed in 0ms
29 timing npm:load Completed in 18ms
30 silly logfile start cleaning logs, removing 1 files
31 timing arborist:ctor Completed in 0ms
32 silly logfile done cleaning log files
33 http fetch GET 200 https://registry.npmjs.org/@observablehq%2fcreate 1890ms (cache revalidated)
34 timing arborist:ctor Completed in 0ms
35 timing arborist:ctor Completed in 0ms
36 timing command:init Completed in 1974ms
37 verbose stack Error: command failed
37 verbose stack     at ChildProcess.<anonymous> (/usr/lib/node_modules/npm/node_modules/@npmcli/promise-spawn/lib/index.js:53:27)
37 verbose stack     at ChildProcess.emit (node:events:514:28)
37 verbose stack     at maybeClose (node:internal/child_process:1105:16)
37 verbose stack     at ChildProcess._handle.onexit (node:internal/child_process:305:5)
38 verbose cwd /home/aborruso/lavagna/tmp/obs
39 verbose Linux 5.15.133.1-microsoft-standard-WSL2
40 verbose node v20.5.1
41 verbose npm  v10.4.0
42 error code 1
43 error path /home/aborruso/lavagna/tmp/obs
44 error command failed
45 error command sh -c observablehq-create
46 verbose exit 1
47 timing npm Completed in 2070ms
48 verbose code 1
49 error A complete log of this run can be found in: /home/aborruso/.npm/_logs/2024-02-16T09_14_56_115Z-debug-0.log

[Fil]

you'll need to upgrade node (requirement is ≥ 20.6)

[aborruso]

Thank you, it works and it seems really great!