Install error with dat using npm on MacBook Pro (Intel version)

[babycamel]

I am reporting:

an install issue as follows:

% sudo npm install -g dat
npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated request@2.88.2: request has been deprecated, see request/request#3142
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
/usr/local/bin/dat -> /usr/local/lib/node_modules/dat/bin/cli.js

utp-native@1.7.3 install /usr/local/lib/node_modules/dat/node_modules/discovery-swarm/node_modules/utp-native
node-gyp-build

gyp WARN EACCES current user ("nobody") does not have permission to access the dev dir "/Users/rbeard/Library/Caches/node-gyp/14.15.0"
gyp WARN EACCES attempting to reinstall using temporary dev dir "/usr/local/lib/node_modules/dat/node_modules/discovery-swarm/node_modules/utp-native/.node-gyp"
gyp WARN install got an error, rolling back install
gyp WARN install got an error, rolling back install
gyp ERR! configure error
gyp ERR! stack Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/dat/node_modules/discovery-swarm/node_modules/utp-native/.node-gyp'
gyp ERR! System Darwin 19.6.0
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /usr/local/lib/node_modules/dat/node_modules/discovery-swarm/node_modules/utp-native
gyp ERR! node -v v14.15.0
gyp ERR! node-gyp -v v5.1.0
gyp ERR! not ok

sodium-native@2.4.9 install /usr/local/lib/node_modules/dat/node_modules/sodium-native
node-gyp-build "node preinstall.js" "node postinstall.js"

autoconf is required, but wasn't found on this system
./configure: line 5: ./configure: No such file or directory
/usr/local/lib/node_modules/dat/node_modules/sodium-native/preinstall.js:119
if (err) throw err
^

Error: ./configure exited with 127
at ChildProcess. (/usr/local/lib/node_modules/dat/node_modules/sodium-native/preinstall.js:149:25)
at ChildProcess.emit (events.js:315:20)
at Process.ChildProcess._handle.onexit (internal/child_process.js:277:12)
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: utp-native@1.7.3 (node_modules/dat/node_modules/discovery-swarm/node_modules/utp-native):
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: utp-native@1.7.3 install: node-gyp-build
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: Exit status 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: sodium-native@2.4.9 (node_modules/dat/node_modules/sodium-native):
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: sodium-native@2.4.9 install: node-gyp-build "node preinstall.js" "node postinstall.js"
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: Exit status 1

Is there a fix for this? I can try installing autoconf but it looks like there are other issues as well. Thanks.