Posted on 2025-09-09 20:30:00+02:00 in tools • Written by Arno Peters • Tagged with input output analysis, flow
This analysis is a way to track different flows across our systems and how the output flow of one element can be used as the input flow to another element in our system.
Every output stream that is not matched to an input is a waste stream and becomes pollution …
Posted on 2025-09-08 15:27:00+02:00 in tools • Written by Arno Peters • Tagged with haybox, implementation
I have designed our haybox in 2019. Over time I streamlined the use of our haybox. This page documents the current (2025) way we use the haybox.
First put rice and salted water to a boil. Take one part rice to two parts water. Put on the lid and let …
Posted on 2025-08-29 20:00:00+02:00 in tools • Written by Arno Peters • Tagged with bookkeeping, ledger-cli, personal finance, flow
Knowing how to Keep the Books is a skill, I believe, everybody would benefit from.
Double-entry accounting simply means that this method accounts for every transaction where the money came from and where it is going. It makes "two entries"!
I highly recommend reading Principles of Accounting with …
Posted on 2025-08-29 19:39:00+02:00 in tools • Written by Arno Peters • Tagged with flow
Flows manifest in systems in all sorts of ways. Here are some things that can flow:
Posted on 2025-05-25 22:55:00+02:00 in tools • Written by Arno Peters • Tagged with meditation
A method for grounding yourself and to bring yourself back to the present moment.
Focus your attention one after the other on these things:
This technique brings me rapidly into …
Posted on 2025-05-13 15:45:00+02:00 in tools • Written by Arno Peters • Tagged with permaculture, 4 questions
The Four Questions is an evaluating tool. The four questions are:
Let's expand on each question.
List all the things that went well in your project, presentation, relationship, life or …
Posted on 2025-05-08 19:46:00+02:00 in tools • Written by Arno Peters • Tagged with 6 ways to die, Simple Critical Infrastructure Maps
The Six Ways To Die (6WTD) is a tool proposed by Vinay Gupta to help individuals and groups quickly identify urgent needs of individuals in a crisis. It explains what basic infrastructure needs to be in place for people to survive to the next day.
The six ways to die …
Posted on 2025-04-05 20:40:00+02:00 in tools • Written by Arno Peters • Tagged with saving rate, safe withdrawal rate, burn rate, life energy
Add together all your bank accounts, investment accounts, retirement accounts (if you can access them), estimates on the value of your house.
Then subtract any debts, mortgages and other financial obligations from that.
Take your employers payment slip from the last year …
Posted on 2025-04-05 20:12:00+02:00 in tools • Written by Arno Peters • Tagged with OODA, permaculture, Holmgren principles
OODA is an abbreviation for the words: Observe, Orient, Decide, Act. Developed and taught by John Boyd, a US military pilot, as a mental model for training other pilots.
Observe is about overseeing the whole, everything, facts and emotions, the different players and their (apparent) motives, culture and history and …
Posted on 2025-01-29 14:30:00+01:00 in tools • Written by Arno Peters • Tagged with permaculture, practical
We created this biochar cooker during the second week of my first PDC. It is made from two large drums and one smaller can.