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Note/Book

[MBTI] Should inferior functions be overcome? Can they be overcome?

Attempting to overcome an inferior function is an attempt to pull up an inferior function belonging to the unconscious into consciousness and place it under control. If one tries to forcibly pull up an inferior function, the whole of the primary to tertiary functions belonging to the conscious mind collapses, and the more one tries to pull up the inferior function, the more it descends from the conscious mind.
Note/Book

[MBTI] Why does the unnaturalness that comes out of trying to overcome inferior functions occur?

Differentiation of personality types begins in childhood. For example, the two attitudes 'extroverted' and 'introverted' are actually found in children. Unlike the dominant function, the inferior function is relegated to the unconscious and is not used as frequently, so the response is inevitably slower than the dominant function.
Entrepreneur

[PdM] How to prioritize products? Identifying the trunk and branches

Product managers (PdMs) tend to be busy with a mountain of requests for functional improvements from other departments and customers, especially in the growth phase, depending on the phase of the product. This article describes my theory on how to prioritise products as a PdM.
Development/Design

[JLCPCB] I received a confirmation email after ordering 100 boards. PCB operation is not checked

If there is no problem with the PCB layout, you will not receive an email from JLCPCB, so if you receive an email, it is when there is a problem, such as an incomplete circuit. Also, JLCPCB does not check the functionality of your own PCB, so you need to look at the schematic and PCB yourself to determine if the order is correct.
Development/Design

[Docker] Understanding inter-container communication. external configuration and access methods

For inter-container communication in Docker, you first need to manually create an existing Docker network. Afterwards, set external: true in docker-compose.yml.For inter-container communication, the port mapping of the host is irrelevant and the internal port is used directly.
Development/Design

[Docker] Port mapping. port numbers appear a lot, so I organized them.

When Dockerising and accessing services inside the container, the Docker container itself is an environment that is also independent of the host machine, so access is only possible via the container port.There are two ways to configure Docker port mapping: using the docker run command or using docker-compose.yml.
Development/Design

[ESP32 x PlatformIO] How to coexist the framework with Arduino and ESP-IDF

PlatformIO allows the Arduino and ESP-IDF frameworks to be used together: by setting framework = arduino, espidf in platform.ini, many existing Arduino libraries can be used directly, thus reducing the need for code porting This saves time and effort in porting and rewriting code.
Development/Design

[App] Create a grid post for iOS screenshots with Figma

iPhone screenshots do not require images at all iPhone display sizes; if the app's UI is the same across multiple device sizes and localisations, simply provide screenshots at the highest resolution required.
Development/Design

[Mia] ESP32 OTA update function implementation: Firmware update app notification

A new Firmware binary is uploaded to the AWS s3 firmware directory with the version specified by the developer.The version of each user's firmware is compared to the latest version uploaded by the developer, and if they are different, the Flutter app is notified that the new firmware is available for installation.
Development/Design

[ESP32] OTA update: Firmware update using MQTT and AWS IoT device shadow

When the user accepts the update, the app sends an API request to the server, which reflects the change in the AWS IoT device shadow. The device detects this change via MQTT and performs a firmware download and upgrade.
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