Experimental system-monitor and status (bar) reporter I use with
[dwm](https://dwm.suckless.org/) on GNU/Linux.
-![screenshot](screenshot.jpg)
+![screenshot](screenshot.png)
-The approaches experimented-with so far, numbered in chronological order of
-origin (i.e. later versions do not _necessarily_ obsolete earlier ones, they're
-just different):
+Experiments
+-----------
+The approaches experimented-with so far (later versions do not _necessarily_
+obsolete earlier ones, they're just different):
-### v1
-A single, synchronous script, saving state in text files (Bash and AWK).
-
-### v2
-Parallel processes: collectors, cacher and reporters; passing messages over pipes
-(Bash and AWK).
-
-### v3
-Clean-up, polish and further development of main ideas learned in v2.
+| Name | Status | Language | Tested-on | Description |
+|--------|----------|-----------|-------------------------|-------------|
+| __x1__ | Archived | Bash, AWK | Ubuntu 16.04 | Single, synchronous script, saving state in text files. |
+| __x2__ | Legacy | Bash, AWK | Debian 10, Ubuntu 18.04 | Sensors are child processes, IPC via parent pipe. |
+| __x3__ | Archived | OCaml | Debian 10 | Re-write and refinement of __x2__ |
+| __x4__ | Archived | Dash, AWK | Debian 10 | Sensors are opaque daemons, cache is a file tree |
+| __x5__ | Current | C | Ubuntu 18.04 | Sensors are opaque daemons, IPC via [pselect](https://en.wikipedia.org/wiki/Select_(Unix))ed FIFOs. |