You can add the following RSS feeds:

- https://hnrss.org/newest?q=openstep (gives you posts referencing openstep) [edit: @themodelplumber posted a comment about GNUStep, the URI can also be: https://hnrss.org/newest?q=openstep+OR+gnustep]

- https://hnrss.org/newcomments?q=openstep (gives you comments referencing openstep, you can see that yours is in there) [edit: as per @themodelplumber's comment, the URI can be: https://hnrss.org/newcomments?q=openstep+OR+gnustep]

You can also keep separate feeds; it is up to you.

You can have that in your email client. Say you use Mozilla Thunderbird for email:

- Click on the menu

- Click New

- Click "Feed account"

- Enter a name "HN OpenStep"

- Click "Next"

- Click "Finish"

You will have one "HN OpenStep" element appear on the left sidebar in Thunderbird. Click on that, then:

- Click "Manage feed subscriptions", from the right pane.

- Enter: https://hnrss.org/newest?q=openstep in the "Feed URL" field on the window that appears

- Click "Add"

- Click "Close".

You will see "Hacker News - Newest openstep ([number])" appear on the left sidebar, as a child element of "HN OpenStep" 'feed account'.

To add the feed for comments:

- Click "Manage feed subscriptions", from the right pane.

- Enter: https://hnrss.org/newcomments?q=openstep in the "Feed URL" field on the window that appears

- Click "Add"

- Click "Close".

You will see "Hacker News - New Comments openstep ([number])" appear on the left sidebar, as a child element of "HN OpenStep" 'feed account'.

Now you can gormandize.

Referencing my reply to someone asking about how to keep tabs on sofware releases here: https://news.ycombinator.com/item?id=29478396