Today I Learned

After a fair bit of digging I found it’s possible using the Philips Hue Bluetooth application to factory reset the bulbs without needing to purchase a hub or remote. This has enabled me to repair my Zigbee devices in Home Assistant through Zigbee2MQQT as I’ve migrated away from Phoscon.

Chrome 58 onwards doesn’t permit self signed SSL certificates which rely on the ‘Common Name’ - you’ll receive a ERR_CERT_COMMON_NAME_INVALID error. Going forward it requires using the ‘Subject Alt Name’ being set. The following is an example of how to generate a self signed certificate for *.website.dev on a Mac and add it to the Keychain.

openssl req \
-newkey rsa:2048 \
-x509 \
-nodes \
-keyout server.key \
-new \
-out server.crt \
-subj /CN=*.website.dev \
-reqexts SAN \
-extensions SAN \
-config <(cat /etc/ssl/openssl.cnf \
  <(printf '[SAN]\nsubjectAltName=DNS:*.website.dev')) \
-sha256 \
-days 3650

sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain ./server.crt

Rename the current branch with the -m flag.

git branch -m <new_branch_name>

The I flag makes this case sensitive.

:%s/find/replace/gcI

You have to use brackets in the statement if the outcome is conditional.

'bar' if aExpression else ('baz' if bExpression)

white-space: pre-wrap; ensures that white space and newlines in content captured from a <textarea> are retained.

In hugo the “anchorize” function helped in adding a unique ID to each TIL entry for linking purposes.

It’s difficult to remember what each git stash contains, but you can add more context by providing a message e.g. git stash save "message goes here"

In most REST based Express.js applications, nesting routers as middleware is commonplace. To keep the parent req.params, you need to add { mergeParams: true } in to the child router.

// blog.js
router.use('/:id/comments' commentsRoutes);

// comments.js
const router = express.router({ mergeParams: true });

router.get('/', (req, res) => {
  console.log(req.params.id);
});