Modules talk over the bus. The power module's bundle puts each fresh reading of its own
sampler in its state draw, keyed by the machine; the bar's block shows that state, which
the bar's bundle watches under the read the mesh grants it. A new catalogue check refuses
a module naming another module's path under /run or /var/lib.
Owns both bars and their icons, the bar blocks as an i3 drop-in; the battery,
GPU and headset blocks leave (hardware and a person's devices), the weather needs
no key; the update count and the bar watchdog become module code, the watchdog
started once per session. Go tools reload, blocks, block-run and themes.
jochen