diff --git a/keyserver/bash/source-nvm.sh b/keyserver/bash/source-nvm.sh
--- a/keyserver/bash/source-nvm.sh
+++ b/keyserver/bash/source-nvm.sh
@@ -6,12 +6,12 @@
 unset PREFIX
 
 # Nix controls the version of node within the development shell
-[ -n "$IN_NIX_SHELL" ] && exit 0
+[[ -n "$IN_NIX_SHELL" ]] && exit 0
 
 # Intel Mac
-[ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"
+[[ -s "/usr/local/opt/nvm/nvm.sh" ]] && . "/usr/local/opt/nvm/nvm.sh"
 # ARM-based Mac
-[ -s "/opt/homebrew/opt/nvm/nvm.sh" ] && . "/opt/homebrew/opt/nvm/nvm.sh"
+[[ -s "/opt/homebrew/opt/nvm/nvm.sh" ]] && . "/opt/homebrew/opt/nvm/nvm.sh"
 # Ubuntu
-[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"
+[[ -s "$NVM_DIR/nvm.sh" ]] && . "$NVM_DIR/nvm.sh"
 nvm install --no-progress
diff --git a/keyserver/package.json b/keyserver/package.json
--- a/keyserver/package.json
+++ b/keyserver/package.json
@@ -7,14 +7,14 @@
   "main": "dist/keyserver",
   "scripts": {
     "clean": "rm -rf dist/ && rm -rf node_modules/ && mkdir dist",
-    "babel-build": ". bash/source-nvm.sh && yarn --silent babel src/ --out-dir dist/ --config-file ./babel.config.cjs --verbose --ignore 'src/landing/flow-typed','src/landing/node_modules','src/landing/package.json','src/lib/flow-typed','src/lib/node_modules','src/lib/package.json','src/web/flow-typed','src/web/node_modules','src/web/package.json','src/web/dist','src/web/webpack.config.js','src/web/account-bar.react.js','src/web/app.react.js','src/web/calendar','src/web/chat','src/web/flow','src/web/loading-indicator.react.js','src/web/modals','src/web/root.js','src/web/router-history.js','src/web/script.js','src/web/selectors/chat-selectors.js','src/web/selectors/entry-selectors.js','src/web/splash','src/web/vector-utils.js','src/web/vectors.react.js'",
+    "babel-build": "./bash/source-nvm.sh && yarn --silent babel src/ --out-dir dist/ --config-file ./babel.config.cjs --verbose --ignore 'src/landing/flow-typed','src/landing/node_modules','src/landing/package.json','src/lib/flow-typed','src/lib/node_modules','src/lib/package.json','src/web/flow-typed','src/web/node_modules','src/web/package.json','src/web/dist','src/web/webpack.config.js','src/web/account-bar.react.js','src/web/app.react.js','src/web/calendar','src/web/chat','src/web/flow','src/web/loading-indicator.react.js','src/web/modals','src/web/root.js','src/web/router-history.js','src/web/script.js','src/web/selectors/chat-selectors.js','src/web/selectors/entry-selectors.js','src/web/splash','src/web/vector-utils.js','src/web/vectors.react.js'",
     "rsync": "rsync -rLpmuv --exclude '*/package.json' --exclude '*/node_modules/*' --include '*.json' --include '*.cjs' --exclude '*.*' src/ dist/",
     "prod-build": "yarn babel-build && yarn rsync && yarn update-geoip",
     "update-geoip": "yarn script dist/scripts/update-geoip.js",
     "prod": "node --trace-warnings --experimental-json-modules --loader=./loader.mjs --experimental-specifier-resolution=node dist/keyserver",
     "dev-rsync": "yarn --silent chokidar --initial --silent -s 'src/**/*.json' 'src/**/*.cjs' -c 'yarn rsync > /dev/null 2>&1'",
-    "dev": "yarn concurrently --names=\"BABEL,RSYNC,NODEM\" -c \"bgBlue.bold,bgMagenta.bold,bgGreen.bold\" \"yarn babel-build --watch\" \"yarn dev-rsync\" \". bash/source-nvm.sh && NODE_ENV=development nodemon -e js,json,cjs --watch dist --experimental-json-modules --loader=./loader.mjs --experimental-specifier-resolution=node dist/keyserver\"",
-    "script": ". bash/source-nvm.sh && NODE_ENV=development node --experimental-json-modules --loader=./loader.mjs --experimental-specifier-resolution=node",
+    "dev": "yarn concurrently --names=\"BABEL,RSYNC,NODEM\" -c \"bgBlue.bold,bgMagenta.bold,bgGreen.bold\" \"yarn babel-build --watch\" \"yarn dev-rsync\" \"./bash/source-nvm.sh && NODE_ENV=development nodemon -e js,json,cjs --watch dist --experimental-json-modules --loader=./loader.mjs --experimental-specifier-resolution=node dist/keyserver\"",
+    "script": "./bash/source-nvm.sh && NODE_ENV=development node --experimental-json-modules --loader=./loader.mjs --experimental-specifier-resolution=node",
     "test": "jest"
   },
   "devDependencies": {