#pastpuzzle en-212🟥🟥🟥🟥 (+1225)🟩🟩🟥🟩 (+50)🟩🟩🟩🟩 (0)▪️▪️▪️▪️
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Gli ultimi otto messaggi ricevuti dalla Federazione
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@Uilebheist non lo è
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@sjvn oh! We're at the same event!
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@mwl@io.mwl.io’s post made me revisit RCS in a very small role: a safety net for individual files.
Paired with nvi, a tiny wrapper lets me snapshot configs before risky edits. Simple, local, no magic.
Example wrapper I’m using:
#!/bin/sh
#
# safeedit — RCS-backed safe editing with nvi
#
set -e
if [ $# -ne 1 ]; then
echo "usage: safeedit <file>" >&2
exit 1
fi
FILE="$1"
if [ ! -f "$FILE" ]; then
echo "safeedit: file not found: $FILE" >&2
exit 1
fi
DIR=$(dirname "$FILE")
BASE=$(basename "$FILE")
RCS_DIR="$DIR/RCS"
RCS_FILE="$RCS_DIR/$BASE,v"
mkdir -p "$RCS_DIR"
chmod 700 "$RCS_DIR"
if [ ! -f "$RCS_FILE" ]; then
ci -l "$FILE"
else
ci -u "$FILE" || true
co -l "$FILE"
fi
exec nvi "$FILE"
nvi protects the session; RCS protects the decision.
Original post by @mwl@snac.bsd.cafe: https://io.mwl.io/@mwl/115814245521209100
#nvi #RCS #Unix #SysAdmin #ConfigManagement
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@lasolitaLaura_ Mannaggia, non ho camomilla in casa.
Provo omettendo la camomilla, tanto non credo che sia un ingrediente essenziale.
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Happy New Year!
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Bringing A Yagi Antenna to 915MHz LoRa
If you’re a regular reader of Hackaday, you may have noticed a certain fondness for Meshtastic devices, and the LoRa protocol more generally. LoRa is a great, low-power radio communications standards, but sometimes the antennas you get with the modules can leave you wanting more. That’s why [Chris Prioli] at the Gloucester County Amateur Radio Club in the great state of New Jersey have got a Yagi antenna for North America’s 915 MHz LoRa band.
Right out the gate, their article links to one of ours, where [tastes_the_code] builds a Yagi antenna for the European 868 MHz LoRa. Like [tastes_the_code], the radio club found [Chris]’s antenna gives much better reception than what came with the LoRa module. Looking out their window, instead of two Metastatic nodes with a stock antenna, one club member is now connecting to two hundred.
A simulation of the radiation pattern. Looks like a Yagi, alright.
Now, the Yagi is directional, so you only get that boost pointed down the axis of the antenna, but at least in simulation they estimate a 7.7 dB front-to-back gain vs under 3 dB for an omnidirectional antenna. Not bad, for a simple 3D print and some stiff wire!If you don’t want to re-invent the wheel again, check out the GCARC’s GitHub for files if you’re in North America. If you’re in Europe, check out [taste_the_code]’s build from last year. Of course whatever band you’re operating in, Yagi isn’t your only roll-your-own option for a LoRa antenna.
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“A tutti noi, per Dio!
A noi!
A Dom e ai privilegi della gioventù!
A quello che siamo, a quello che eravamo...”
Mr Burnes“e a quello che saremo…”
PiselloneChe sia un bellissimo 2026
