Nostalgia Dagger Module
A couple years ago Cory Doctorow wrote a post about “The Memex Method” where he described how to use your blog as your second brain. He’s been writing (well) for decades, and one of my favorite parts of his blog is when he refers back to previously written posts looking back 1, 5, 10, and 20 years.
I have also been writing (not so well) for almost 20 years and wanted to find a way to do something similar here. So naturally I wrote a Dagger module called Nostalgia that parses an RSS feed and extracts posts from this day going back to the start of the feed.
It can also print some interesting statistics about the feed.

It already has some issues because it seems that not all feeds are made the same so I need to add support for other types of RSS feeds, but if you have a feed generated by hugo using rss 2.0 it should work out of the box.
I plan to combine this with a few of the other modules that I have written so far as part of my blog publishing pipeline, in the quest to join the posse club.
–
Appendix: Usage Examples
Get stats from a feed
dagger --feed-url https://levlaz.org/index.xml -m github.com/levlaz/daggerverse/nostalgia call stats
Get posts from today
note: today inside the function is using UTC, so it may be a bit wonky depending on your timezone. I’m still trying to figure out how to best handle this, let me know if you have any ideas <3
dagger --feed-url https://levlaz.org/index.xml -m github.com/levlaz/daggerverse/nostalgia call today
Get posts from some other day
note: date format is MM-DD
dagger --feed-url https://levlaz.org/index.xml -m github.com/levlaz/daggerverse/nostalgia call today --check-date 06-10
Thank you for reading! Share your thoughts with me on bluesky, mastodon, or via email.
Check out some more stuff to read down below.
Most popular posts this month
- SQLite DB Migrations with PRAGMA user_version
- Microblog
- Setting up ANTLR4 on Windows
- How to Disable Wayland in Debian Testing
- Programming
Recent Favorite Blog Posts
This is a collection of the last 8 posts that I bookmarked.
- The contagion of fear from The Observation Deck
- The revolt of the reader from The Observation Deck
- Deeper dive: Were Touch Bar’s problems software rather than hardware? from Unsung
- Joining Cursor from Fatih Arslan
- Pluralistic: Digital sewer socialism (08 Aug 2026) from Pluralistic: Daily links from Cory Doctorow
- Pluralistic: Enshittification and Reverse Centaurs go global (29 Jul 2026) from Pluralistic: Daily links from Cory Doctorow
- AI Mania Is Eviscerating Global Decision-Making from Ludicity
- The default person from https://popagandhi.com/
Articles from blogs I follow around the net
“From digital mischief to outright destruction”
The 1980s and 1990s PC viruses were a special breed. The MS-DOS operating system wasn’t particularly secure – few home computer operating systems were back then – so viruses could spread quickly, and many did. Some of the viruses focused more on actually w...
via Unsung November 11, 2026The villa of Ormen
As a child, I was never a fan of any actor or singer. David Bowie is the closest thing to a “music idol” I’ve ever had. I never had a poster of him on my wall, or a T-shirt with his face on it, but he was a constant presence in my playlists, to the point w...
via Personal Site of Andrei N. Ciobanu November 11, 2026Candidate Statement for the 2026 W3C TAG Election
Group photo of the W3C TAG in July 2022 with me to the left of Sir Tim Berners-Lee (inventor of the Web and TAG chair emeritus). Photo credit: Dan Appelquist I had the great honor of being elected to the TAG by the W3C membership in 2020 and again in 2022,...
via Lea Verou’s blog November 11, 2026Generated by openring