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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    electron-rebuild problems with MagicMirror 2.22.0

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    • wishmaster270W Offline
      wishmaster270 Module Developer
      last edited by

      Hi,

      today i tried the new release and had the usual problems with electron-rebuild with my MMM-GPIO-Notifications module. I also tried MMM-Buttons of @sdetweil i copied his approche to handle electron-rebuild to my module some time ago.

      As nearly all PIR modules will have the same issues i wanted to discuss possible solutions in public.

      I use a fully patched Raspberry OS Bullseye 32Bit.

      pi@mirror-eg:~ $ cd MagicMirror/modules/
      pi@mirror-eg:~/MagicMirror/modules $ git clone https://github.com/sdetweil/MMM-Buttons.git
      Klone nach 'MMM-Buttons' ...
      remote: Enumerating objects: 56, done.
      remote: Counting objects: 100% (4/4), done.
      remote: Compressing objects: 100% (4/4), done.
      remote: Total 56 (delta 0), reused 2 (delta 0), pack-reused 52
      Entpacke Objekte: 100% (56/56), Fertig.
      pi@mirror-eg:~/MagicMirror/modules $ cd MMM-Buttons/
      pi@mirror-eg:~/MagicMirror/modules/MMM-Buttons $ npm install
      
      > Magic-Mirror-Module-Buttons@1.0.0 postinstall
      > ./postinstall
      
      ⠴ Building module: epoll, Completed: 0make: Verzeichnis „/home/pi/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build“ wird betreten
      ⠦ Building module: epoll, Completed: 0  CXX(target) Release/obj.target/epoll/src/epoll.o
      ⠙ Building module: epoll, Completed: 0In file included from /home/pi/.electron-gyp/22.0.0/include/node/v8-local-handle.h:12,
                       from /home/pi/.electron-gyp/22.0.0/include/node/v8-array-buffer.h:12,
                       from /home/pi/.electron-gyp/22.0.0/include/node/v8.h:24,
                       from ../src/epoll.cc:11:
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:124:62: warning: left shift count >= width of type [-Wshift-count-overflow]
       constexpr size_t kPtrComprCageReservationSize = size_t{1} << 32;
                                                                    ^~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:124:59: error: right operand of shift expression ‘(1 << 32)’ is >= than the precision of the left operand [-fpermissive]
       constexpr size_t kPtrComprCageReservationSize = size_t{1} << 32;
                                                       ~~~~~~~~~~^~~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:125:60: warning: left shift count >= width of type [-Wshift-count-overflow]
       constexpr size_t kPtrComprCageBaseAlignment = size_t{1} << 32;
                                                                  ^~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:125:57: error: right operand of shift expression ‘(1 << 32)’ is >= than the precision of the left operand [-fpermissive]
       constexpr size_t kPtrComprCageBaseAlignment = size_t{1} << 32;
                                                     ~~~~~~~~~~^~~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:128:27: error: static assertion failed: Pointer compression can be enabled only for 64-bit architectures
           kApiSystemPointerSize == kApiInt64Size,
           ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:186:38: warning: conversion from ‘long long unsigned int’ to ‘size_t’ {aka ‘unsigned int’} changes value from ‘1099511627776’ to ‘0’ [-Woverflow]
       constexpr size_t kSandboxSize = 1ULL << kSandboxSizeLog2;
                                       ~~~~~^~~~~~~~~~~~~~~~~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:204:50: warning: conversion from ‘long long unsigned int’ to ‘size_t’ {aka ‘unsigned int’} changes value from ‘34359738368’ to ‘0’ [-Woverflow]
       constexpr size_t kSandboxGuardRegionSize = 32ULL * GB;
                                                  ~~~~~~^~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:220:56: warning: conversion from ‘long long unsigned int’ to ‘size_t’ {aka ‘unsigned int’} changes value from ‘8589934592’ to ‘0’ [-Woverflow]
       constexpr size_t kSandboxMinimumReservationSize = 8ULL * GB;
                                                         ~~~~~^~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:230:60: warning: conversion from ‘long long unsigned int’ to ‘size_t’ {aka ‘unsigned int’} changes value from ‘34359738367’ to ‘4294967295’ [-Woverflow]
       constexpr size_t kMaxSafeBufferSizeForSandbox = 32ULL * GB - 1;
                                                       ~~~~~~~~~~~^~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:231:44: error: static assertion failed: The maximum allowed buffer size must not be larger than the sandbox's guard regions
       static_assert(kMaxSafeBufferSizeForSandbox <= kSandboxGuardRegionSize,
                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:236:48: error: static assertion failed: The maximum size of a BoundedSize must be synchronized with the kMaxSafeBufferSizeForSandbox
       static_assert(1ULL << (64 - kBoundedSizeShift) ==
                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
                         kMaxSafeBufferSizeForSandbox + 1,
                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /home/pi/.electron-gyp/22.0.0/include/node/v8-internal.h:260:56: error: static assertion failed: kExternalPointerTableReservationSize and kExternalPointerIndexShift don't match
       static_assert((1 << (32 - kExternalPointerIndexShift)) == kMaxExternalPointers,
                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
      ⠹ Building module: epoll, Completed: 0make: *** [epoll.target.mk:129: Release/obj.target/epoll/src/epoll.o] Fehler 1
      make: Verzeichnis „/home/pi/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build“ wird verlassen
      ✖ Rebuild Failed
      
      An unhandled error occurred inside electron-rebuild
      node-gyp failed to rebuild '/home/pi/MagicMirror/modules/MMM-Buttons/node_modules/epoll'.
      For more information, rerun with the DEBUG environment variable set to "electron-rebuild".
      
      Error: `make` failed with exit code: 2
      
      
      
      Error: node-gyp failed to rebuild '/home/pi/MagicMirror/modules/MMM-Buttons/node_modules/epoll'.
      For more information, rerun with the DEBUG environment variable set to "electron-rebuild".
      
      Error: `make` failed with exit code: 2
      
      
          at NodeGyp.rebuildModule (/home/pi/MagicMirror/node_modules/electron-rebuild/lib/src/module-type/node-gyp.js:120:19)
          at processTicksAndRejections (node:internal/process/task_queues:96:5)
          at async ModuleRebuilder.rebuildNodeGypModule (/home/pi/MagicMirror/node_modules/electron-rebuild/lib/src/module-rebuilder.js:98:9)
          at async ModuleRebuilder.rebuild (/home/pi/MagicMirror/node_modules/electron-rebuild/lib/src/module-rebuilder.js:128:14)
          at async Rebuilder.rebuildModuleAt (/home/pi/MagicMirror/node_modules/electron-rebuild/lib/src/rebuild.js:149:13)
          at async Rebuilder.rebuild (/home/pi/MagicMirror/node_modules/electron-rebuild/lib/src/rebuild.js:112:17)
          at async /home/pi/MagicMirror/node_modules/electron-rebuild/lib/src/cli.js:158:9
      npm ERR! code 255
      npm ERR! path /home/pi/MagicMirror/modules/MMM-Buttons
      npm ERR! command failed
      npm ERR! command sh -c ./postinstall
      
      npm ERR! A complete log of this run can be found in:
      npm ERR!     /home/pi/.npm/_logs/2023-01-06T11_10_38_105Z-debug-0.log
      
      S 3 Replies Last reply Reply Quote 0
      • S Offline
        sdetweil @wishmaster270
        last edited by sdetweil

        @wishmaster270 on my intel box this worked great

        sam@galliumos:~/MagicMirror/modules/MMM-Buttons$ npm install --omit=dev --no-audit --no-fund
        
        > Magic-Mirror-Module-Buttons@1.0.0 postinstall
        > ./postinstall
        
        /home/sam/MagicMirror/modules/MMM-Buttons
        ⠇ Building module: epoll, Completed: 0make: Entering directory '/home/sam/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build'
          CXX(target) Release/obj.target/epoll/src/epoll.o
        ⠴ Building module: epoll, Completed: 0  SOLINK_MODULE(target) Release/obj.target/epoll.node
        ⠏ Building module: epoll, Completed: 0  COPY Release/epoll.node
        make: Leaving directory '/home/sam/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build'
        ✔ Rebuild Complete
        
        added 6 packages in 31s
        

        worked on on buster

        pi@raspberrypi42:~/MagicMirror/modules/MMM-Buttons $ npm install --omit=dev --no-fund --no-audit
        
        > Magic-Mirror-Module-Buttons@1.0.0 postinstall
        > ./postinstall
        
        ⠸ Building module: epoll, Completed: 0make: Entering directory '/home/pi/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build'
          CXX(target) Release/obj.target/epoll/src/epoll.o
        ⠇ Building module: epoll, Completed: 0  SOLINK_MODULE(target) Release/obj.target/epoll.node
        ⠙ Building module: epoll, Completed: 0  COPY Release/epoll.node
        make: Leaving directory '/home/pi/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build'
        ✔ Rebuild Complete
        
        up to date in 14s
        pi@raspberrypi42:~/MagicMirror/modules/MMM-Buttons $ grep version ../../package.json 
        	"version": "2.22.0",
        
        

        Sam

        How to add modules

        learning how to use browser developers window for css changes

        KristjanESPERANTOK S 2 Replies Last reply Reply Quote 0
        • KristjanESPERANTOK Offline
          KristjanESPERANTO Module Developer @sdetweil
          last edited by KristjanESPERANTO

          To me this looks like a problem with the onoff package. Because if I remove onoff from the package.json, npm i works.

          onoff also comes with the dependency epoll, which appears a lot in the error messages.

          npm i onoff and npm i epoll produce similar error messages. I think that’s where the main problem is.

          S 2 Replies Last reply Reply Quote 0
          • S Offline
            sdetweil @KristjanESPERANTO
            last edited by

            @KristjanESPERANTO the ‘problem’ is that the module installs electron-rebuild in its OWN MODULE folder, and it can no longer figure out what electron version it needs to build for…

            the only ‘fix’ is to install electron-rebuild in the MM folder (we should just install it to begin with in my opinion)
            and to launch THAT version of eb…

            Sam

            How to add modules

            learning how to use browser developers window for css changes

            1 Reply Last reply Reply Quote 0
            • S Offline
              sdetweil @KristjanESPERANTO
              last edited by sdetweil

              @KristjanESPERANTO epoll binary is dependent on the Electron version.

              no matter which lib drags it in … so you MUST run eb… to get it current…

              see my prior post for the troubles…

              NOBODY gives a crap about breaking changes anymore…
              they all feel if you don’t update, then your code dies. and they don’t care…

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              1 Reply Last reply Reply Quote 0
              • S Offline
                sdetweil @sdetweil
                last edited by

                @sdetweil and it succeeded on pi4 w bullseye… I also tested with my

                upgrade script and backup/restore
                and both those executed and did rebuild on the modules… (using the postinstall script)

                Sam

                How to add modules

                learning how to use browser developers window for css changes

                karsten13K 1 Reply Last reply Reply Quote 0
                • karsten13K Offline
                  karsten13 @sdetweil
                  last edited by

                  node@raspberrypi:/opt/magic_mirror/modules$ git clone https://github.com/sdetweil/MMM-Buttons.git
                  Cloning into 'MMM-Buttons'...
                  remote: Enumerating objects: 56, done.
                  remote: Counting objects: 100% (4/4), done.
                  remote: Compressing objects: 100% (4/4), done.
                  remote: Total 56 (delta 0), reused 2 (delta 0), pack-reused 52
                  Receiving objects: 100% (56/56), 11.86 KiB | 1.69 MiB/s, done.
                  Resolving deltas: 100% (25/25), done.
                  node@raspberrypi:/opt/magic_mirror/modules$ cd MMM-Buttons/
                  node@raspberrypi:/opt/magic_mirror/modules/MMM-Buttons$ ls -la
                  total 40
                  drwxr-xr-x 3 node node 4096 Jan  6 19:39 .
                  drwxr-xr-x 5 node node 4096 Jan  6 19:39 ..
                  drwxr-xr-x 8 node node 4096 Jan  6 19:39 .git
                  -rw-r--r-- 1 node node  530 Jan  6 19:39 CHANGELOG.md
                  -rw-r--r-- 1 node node 3416 Jan  6 19:39 MMM-Buttons.js
                  -rw-r--r-- 1 node node 5725 Jan  6 19:39 README.md
                  -rw-r--r-- 1 node node 2778 Jan  6 19:39 node_helper.js
                  -rw-r--r-- 1 node node  693 Jan  6 19:39 package.json
                  -rwxr-xr-x 1 node node  179 Jan  6 19:39 postinstall
                  node@raspberrypi:/opt/magic_mirror/modules/MMM-Buttons$ npm install
                  
                  > Magic-Mirror-Module-Buttons@1.0.0 postinstall
                  > ./postinstall
                  
                  /opt/magic_mirror/modules/MMM-Buttons
                  ⠧ Building module: epoll, Completed: 0make: Entering directory '/opt/magic_mirror/modules/MMM-Buttons/node_modules/epoll/build'
                    CXX(target) Release/obj.target/epoll/src/epoll.o
                  ⠙ Building module: epoll, Completed: 0  SOLINK_MODULE(target) Release/obj.target/epoll.node
                  ⠼ Building module: epoll, Completed: 0  COPY Release/epoll.node
                  make: Leaving directory '/opt/magic_mirror/modules/MMM-Buttons/node_modules/epoll/build'
                  ✔ Rebuild Complete
                  
                  added 6 packages, and audited 7 packages in 2m
                  
                  found 0 vulnerabilities
                  
                  S 1 Reply Last reply Reply Quote 0
                  • S Offline
                    sdetweil @karsten13
                    last edited by

                    @karsten13 yep, looks good…

                    Sam

                    How to add modules

                    learning how to use browser developers window for css changes

                    KristjanESPERANTOK 1 Reply Last reply Reply Quote 0
                    • KristjanESPERANTOK Offline
                      KristjanESPERANTO Module Developer @sdetweil
                      last edited by

                      For me it looks like this:

                      kristjan@debian:~/Infomonitor/MagicMirror/modules$ git clone https://github.com/sdetweil/MMM-Buttons.git
                      Cloning into 'MMM-Buttons'...
                      remote: Enumerating objects: 56, done.
                      remote: Counting objects: 100% (4/4), done.
                      remote: Compressing objects: 100% (4/4), done.
                      remote: Total 56 (delta 0), reused 2 (delta 0), pack-reused 52
                      Receiving objects: 100% (56/56), 11.86 KiB | 1.69 MiB/s, done.
                      Resolving deltas: 100% (25/25), done.
                      kristjan@debian:~/Infomonitor/MagicMirror/modules$ cd MMM-Buttons/
                      kristjan@debian:~/Infomonitor/MagicMirror/modules/MMM-Buttons$ npm install
                      npm ERR! code 1
                      npm ERR! path /home/kristjan/Infomonitor/MagicMirror/modules/MMM-Buttons/node_modules/epoll
                      npm ERR! command failed
                      npm ERR! command sh -c -- node-gyp rebuild
                      npm ERR! make: Entering directory '/home/kristjan/Infomonitor/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build'
                      npm ERR!   CXX(target) Release/obj.target/epoll/src/epoll.o
                      npm ERR!   SOLINK_MODULE(target) Release/obj.target/epoll.node
                      npm ERR! make: Leaving directory '/home/kristjan/Infomonitor/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build'
                      npm ERR! gyp info it worked if it ends with ok
                      npm ERR! gyp info using node-gyp@9.3.1
                      npm ERR! gyp info using node@16.18.0 | linux | x64
                      npm ERR! gyp info find Python using Python version 3.9.2 found at "/usr/bin/python3"
                      npm ERR! gyp info spawn /usr/bin/python3
                      npm ERR! gyp info spawn args [
                      npm ERR! gyp info spawn args   '/home/kristjan/Infomonitor/MagicMirror/node_modules/node-gyp/gyp/gyp_main.py',
                      npm ERR! gyp info spawn args   'binding.gyp',
                      npm ERR! gyp info spawn args   '-f',
                      npm ERR! gyp info spawn args   'make',
                      npm ERR! gyp info spawn args   '-I',
                      npm ERR! gyp info spawn args   '/home/kristjan/Infomonitor/MagicMirror/modules/MMM-Buttons/node_modules/epoll/build/config.gypi',
                      npm ERR! gyp info spawn args   '-I',
                      npm ERR! gyp info spawn args   '/home/kristjan/Infomonitor/MagicMirror/node_modules/node-gyp/addon.gypi',
                      npm ERR! gyp info spawn args   '-I',
                      npm ERR! gyp info spawn args   '/home/kristjan/.cache/node-gyp/16.18.0/include/node/common.gypi',
                      npm ERR! gyp info spawn args   '-Dlibrary=shared_library',
                      npm ERR! gyp info spawn args   '-Dvisibility=default',
                      npm ERR! gyp info spawn args   '-Dnode_root_dir=/home/kristjan/.cache/node-gyp/16.18.0',
                      npm ERR! gyp info spawn args   '-Dnode_gyp_dir=/home/kristjan/Infomonitor/MagicMirror/node_modules/node-gyp',
                      npm ERR! gyp info spawn args   '-Dnode_lib_file=/home/kristjan/.cache/node-gyp/16.18.0/<(target_arch)/node.lib',
                      npm ERR! gyp info spawn args   '-Dmodule_root_dir=/home/kristjan/Infomonitor/MagicMirror/modules/MMM-Buttons/node_modules/epoll',
                      npm ERR! gyp info spawn args   '-Dnode_engine=v8',
                      npm ERR! gyp info spawn args   '--depth=.',
                      npm ERR! gyp info spawn args   '--no-parallel',
                      npm ERR! gyp info spawn args   '--generator-output',
                      npm ERR! gyp info spawn args   'build',
                      npm ERR! gyp info spawn args   '-Goutput_dir=.'
                      npm ERR! gyp info spawn args ]
                      npm ERR! gyp info spawn make
                      npm ERR! gyp info spawn args [ 'BUILDTYPE=Release', '-C', 'build' ]
                      npm ERR! /usr/bin/ld: /lib/x86_64-linux-gnu/libm.so.6: unknown type [0x13] section `.relr.dyn'
                      npm ERR! /usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libm.so.6 when searching for /lib/x86_64-linux-gnu/libm.so.6
                      npm ERR! /usr/bin/ld: cannot find /lib/x86_64-linux-gnu/libm.so.6
                      npm ERR! /usr/bin/ld: /lib/x86_64-linux-gnu/libm.so.6: unknown type [0x13] section `.relr.dyn'
                      npm ERR! /usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libm.so.6 when searching for /lib/x86_64-linux-gnu/libm.so.6
                      npm ERR! /usr/bin/ld: /lib/x86_64-linux-gnu/libmvec.so.1: unknown type [0x13] section `.relr.dyn'
                      npm ERR! /usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libmvec.so.1 when searching for /lib/x86_64-linux-gnu/libmvec.so.1
                      npm ERR! /usr/bin/ld: cannot find /lib/x86_64-linux-gnu/libmvec.so.1
                      npm ERR! /usr/bin/ld: /lib/x86_64-linux-gnu/libmvec.so.1: unknown type [0x13] section `.relr.dyn'
                      npm ERR! /usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libmvec.so.1 when searching for /lib/x86_64-linux-gnu/libmvec.so.1
                      npm ERR! collect2: error: ld returned 1 exit status
                      npm ERR! make: *** [epoll.target.mk:145: Release/obj.target/epoll.node] Error 1
                      npm ERR! gyp ERR! build error 
                      npm ERR! gyp ERR! stack Error: `make` failed with exit code: 2
                      npm ERR! gyp ERR! stack     at ChildProcess.onExit (/home/kristjan/Infomonitor/MagicMirror/node_modules/node-gyp/lib/build.js:203:23)
                      npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:513:28)
                      npm ERR! gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:293:12)
                      npm ERR! gyp ERR! System Linux 5.10.0-20-amd64
                      npm ERR! gyp ERR! command "/home/kristjan/.nvm/versions/node/v16.18.0/bin/node" "/home/kristjan/Infomonitor/MagicMirror/node_modules/.bin/node-gyp" "rebuild"
                      npm ERR! gyp ERR! cwd /home/kristjan/Infomonitor/MagicMirror/modules/MMM-Buttons/node_modules/epoll
                      npm ERR! gyp ERR! node -v v16.18.0
                      npm ERR! gyp ERR! node-gyp -v v9.3.1
                      npm ERR! gyp ERR! not ok
                      
                      npm ERR! A complete log of this run can be found in:
                      npm ERR!     /home/kristjan/.npm/_logs/2023-01-06T18_47_25_457Z-debug-0.log
                      kristjan@debian:~/Infomonitor/MagicMirror/modules/MMM-Buttons$ uname -r
                      5.10.0-20-amd64
                      kristjan@debian:~/Infomonitor/MagicMirror/modules/MMM-Buttons$ lsb_release -a
                      No LSB modules are available.
                      Distributor ID:	Debian
                      Description:	Debian GNU/Linux 11 (bullseye)
                      Release:	11
                      Codename:	bullseye
                      
                      S 2 Replies Last reply Reply Quote 0
                      • S Offline
                        sdetweil @wishmaster270
                        last edited by

                        @wishmaster270 i don’t see any issues for your module either (modified using postinstall script)

                        sam@galliumos:~/MagicMirror/modules/MMM-GPIO-Notifications$ npm install --omit=dev --no-fund --no-audit
                        npm WARN deprecated @npmcli/move-file@2.0.1: This functionality has been moved to @npmcli/fs
                        
                        > MMM-GPIO-Notifications@0.0.5 postinstall
                        > ./postinstall
                        
                        ⠧ Building module: epoll, Completed: 0make: Entering directory '/home/sam/MagicMirror/modules/MMM-GPIO-Notifications/node_modules/epoll/build'
                          CXX(target) Release/obj.target/epoll/src/epoll.o
                        ⠴ Building module: epoll, Completed: 0  SOLINK_MODULE(target) Release/obj.target/epoll.node
                        ⠧ Building module: epoll, Completed: 0  COPY Release/epoll.node
                        ⠇ Building module: epoll, Completed: 0make: Leaving directory '/home/sam/MagicMirror/modules/MMM-GPIO-Notifications/node_modules/epoll/build'
                        ✔ Rebuild Complete
                        
                        added 170 packages in 20s
                        
                        

                        npm 8.11.0
                        node 16.16.0

                        Sam

                        How to add modules

                        learning how to use browser developers window for css changes

                        1 Reply Last reply Reply Quote 0
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