Keyman is very popular among linguists, if you still prefer a keeb that will input IPA Unicode by itself, you can get a QMK compatible keyboard (like this), but you'll need to program it, as in write the code yourself. Source: about 1 year ago

SIL's Ukelele is a popular app for creating custom keyboard layouts on macOS. SIL also recommends Keyman if you're looking for a cross-platform app for creating custom keyboards. Keyman already supports thousands of languages so they might already have a keyboard for the languages you need. Source: almost 2 years ago

While I haven't used it myself, I have heard that Keyman is highly flexible and extensible, so it may allow OP to create a layout in its own format that has the desired behavior. Keyman was originally a commercial product, but SIL (which had long advocated its use) acquired it in 2015 and made it free shortly thereafter. The original developer seems to still be part of the team working on it for SIL. Source: about 2 years ago

For Tam Thư, specifically the phonetic Latin Quốc Ngữ and Ký Âm, I'm working off of an existing keyboard distribution platform called Keyman. It's free and open source with good developer's guide. For my case, Vietnamese typing is a bit complicated with many key sequences that makes modifications to a base glyph, and Keyman is a fit tool for that in my experience. It also follow the principle of "write once, run... Source: about 2 years ago

Because Tam Thư is in fact 3 writing systems combined, I made 3 separate IMEs/keyboard layouts for each of them: 2 phonetic keyboards for Latin Quốc Ngữ and Ký Âm Tự using Keyman, and 1 logographic keyboard for Hán Nôm (think of it as Vietnamese Kanji, you can read more about its history here) using Rime. This results in the user having to install both Keyman and Rime + my IME package for each of the two. Then... Source: about 2 years ago

Suggest you leave a message via the Support section of Tyoe Fu webpage with description of this peculiar behaviour 😳. Source: about 1 year ago

What really forced me to learn is when I got a keyboard with blank keycaps. But short of that, I found it pretty effective to do some typing practice where the text is computer code. See e.g. Type-Fu and in the "Lesson" drop down select "Code.". Source: almost 2 years ago

So it's helpful to do some targeted touch typing exercises for symbols. I've found it useful, though boring, to exercise on text that is purely a random sequence of symbols. This at least forced me to remember which symbols are at which key positions. Alternatively you could practice on a sample of code. In Type Fu, you can practice on code samples by selecting "Code" in the "Lesson" drop down. Source: almost 2 years ago

I used Type-fu when I finally decided to learn how to touch type properly. It worked just fine, it only took a few hours to learn how to place my hands correctly and finding the correct keys with my fingers. Source: over 2 years ago

Mavis Beacon is how I learned to touch type 25 years ago! For a great modern app with a lot of features check out https://type-fu.com/ The MacOS app is nice and it also works on the web and other platforms. - Source: Hacker News / over 2 years ago