#plan9
Live, measured metrics for the hashtag #plan9 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #plan9
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 06:02 UTC3 uses by 3 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-07-27 06:02 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 06:02 UTCEverything below is measured over the latest 40 public posts (spanning ~1599 hours).
Posting hours (UTC) — busiest: 12:00
Languages: English (31) · Italian (2) · Swedish (2) · Portuguese (2)
Avg boosts / post: 6.9
Top of the latest posts
#UNIX is not just an OS; it is arguably the ultimate #IDE for #programmers, and the best written introductory book on UNIX programming is "The UNIX Programming Environment", Kernighan (1983). This book covers UNIX V7, but I used it with 4.2
I use #plan9 #acme to write #oberon for #avr MCUs on macosx and #openBSD laptops with the occasional foray into doing #forth on #8051 mcus. This isn't normal, I know.
In the tiny world of #ARM (and many other) #microcontrollers, everything is an "address": in-CPU status and control registers, on- and off-chip peripheral data and control registers, I/O ports, and other hardware bits are accessed via a mem
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/plan9