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Note/Book

[ENFJ] Protagonist. Extroverted Emotional Type with Introverted Intuition (MBTI)

ENFJs have high expectations of the world, their own potential and values, and a strong desire to fulfil them. They are highly empathetic towards others through their primary function, extraverted affect (Fe), and sensitive to people's feelings and needs; Fe-Ni: they have their own vision of the future and try to realise it while prioritising the feelings and needs of others.
Note/Book

[ISTJ] Logistician. Introverted Sensory Type with Extroverted Thinking (MBTI)

ISTJs are Si-Te cognitive functions, so they make efficient and logical decisions based on past experience and facts. In my impression, the words 'serious and honest' best describe this type.My impression is that they demonstrate their characteristics by being like a behind-the-scenes force in back office, accounting and other tasks that are routine and need to be done efficiently.
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[ISFJ] Defender. Introverted Sensory Type with Extroverted Emotion (MBTI)

ISFJs are Si-Fe cognitive functionaries, so they make decisions on how best to respond to others based on past experiences and facts, taking into account the feelings and needs of others. My impression is that the word 'dedication' best fits this type; ISFJs are highly dependent on others and desire for approval, for better or worse, and their own intentions and wishes tend to be vague because 'what I want to do = the role expected of me by those around me'.
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[ESFJ] Consul. Extroverted Emotional Type with a Sense of Introversion (MBTI)

ESFJs are Fe-Si's cognitive function, so they make decisions based on their past experiences and achievements, while taking into account the emotions and social expectations of others. However, if their caring nature goes too far, they may become 'meddlesome, over-involved and caring', so it is difficult to find the right balance.Also, I feel that many people are basically chatty and often seek advice from others. They also have a clear sense of joy, anger, sorrow and pleasure.
Note/Book

[ISTP] Virtuoso. Introverted Thinking Type with a Sense of Extroversion (MBTI)

ISTP is a cognitive function of Ti-Se and therefore a realistic rationalist. They analyse situations and problems logically and find real, practical solutions. My impression is that the term 'tough loner' best describes this type.The degree of unwillingness to be bound by rules and regulations is the highest among MBTI's. Although he has considerable emotional ebbs and flows on the inside, he rarely shows them on the outside and is often seen as a rational and calm person.
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[ESTP] Entrepreneur. Extroverted Sensory Type with Introverted Thinking (MBTI)

ESTPs are Se-Ti cognitive functions, so they make logical decisions based on information obtained through the five senses; my impression of ESTPs is that they are 'hedonists' in the best sense of the word; like ENTPs, they are impatient and quick-witted, but unlike ENTPs, they are more realistic and take action as soon as they think of it, which is even higher than ENTPs. Even more so than ENTPs.
Note/Book

[ESFP] Entertainer. Extroverted Sensory Type with Introverted Emotion (MBTI)

ESFP is a cognitive function of Se-Fi, so it makes decisions based on its own emotions from information obtained through the five senses. They are sociable and jovial and like to be in groups with friends, conversely, prolonged 1:1 conversations would be awkward or uncomfortable as the ESFP would get bored.
Entrepreneur

[SNS Marketing] How to Create FB and Insta Ad Reel Videos and Verify A/B Testing

This article describes how to create reel-to-reel video ads and how to distribute ads. In my case, I have a policy of "first running a small test with a daily budget of ¥1,000 for a week" for SNS advertising, so I started with a daily budget of ¥1,000 for this time as well.When I first conducted a trial transmission with a budget of ¥1,000 for the following video, the CTR (cost per advertisement until website click) was about ¥30 at first, but it was gradually optimised afterwards, and finally dropped to nearly ¥10 after about three days.
built-in(C++)

[ESP32] How to migrate from Arduino IDE to Platform IO

After switching from Arduino to PlatformIO, I can now use VSCode to centralise all code creation, Build and Upload, and I feel that the Build speed is about twice as fast as with Arduino. It's also good that it automatically searches for ports.
application(Flutter)

[Development] Reflections on Developing a Large Function: Priorities for Function Development and Testing

Although we initially assumed that it would take about a month, we were able to finish the development in about half the time (currently waiting for PR review), which was good in itself, but I would like to describe my reflections (mindset and how efficient it is to proceed with the development) after developing a large function this time as a reminder. I would like to describe it as a reminder of the experience of developing a large feature this time (mindset and how to proceed efficiently with development).