libv8 | Ruby gem binary distribution of the V8 JavaScript engine

I am trying to run Jekyll and I have the following contents in the Gemfile

I am using ruby-2.0.0-p648 for rails 4.0.0.

Currently working on system macOS Catalina, when I run bundle install it gives following error,

I am deploying Shiny-server in container. By default Shiny-server listens on port 3838, here is piece from shiny-server.conf

I'm currently working as an author and contributor to SSIM.js and jest-image-snapshot on behalf of Not a Typical Agency. A lot of the work I'm performing results in the creation of new algorithms to compare images in Javascript. After a lot of research and testing with AssemblyScript and WebAssembly, I've found that I can often get a higher-performing and more portable solutions with pure JS than I do with either of these two technologies. However, that only happens after performing an extensive code review of the generated assembly and performing many experiments.

What I'd like to understand is if there's a way to get Node.JS/libV8 to automatically vectorize sections of code. As an example, I have a two-pass loop that calculates prefix sums for each pixel in an image horizontally then vertically. Skipping over the horizontal prefix sum (which can be challenging to vectorize for a real performance improvement with pure assembly), the vertical prefix sum should be super simple to optimize. Here's an example:

I picked up a 4 year old project written in Ruby 2.1.3 and Rails 4.1.8.

Very few of the gems were versioned but I've managed to get the project running locally by installing mysql2 0.3.20 as suggested in multiple other threads. Doing this required me to (on MacOS) downgrade openssl and mysql with brew install mysql@57 and brew install openssl@10.

I could then install mysql2 with by passing the correct libraries to it: gem install mysql2 -v 0.3.20 -- --with-mysql-config=/usr/local/opt/mysql@5.7/bin/mysql_config --with-ldflags=-L/usr/local/opt/openssl@1.0/lib --with-cppflags=-I/usr/local/opt/openssl@1.0/include

Everything works locally, all good.

I'm trying to deploy this project with Dokku on a Debian instance. Here's the readout from the push to dokku master including the error thrown when starting the Rails server:

I have been trying to install therubyracer and tried almost all that i could find on stackoverflow but it still seems to give me the same error. I am also new to ruby on rails so I cant exactly navigate through the error message. Below is the error message:

I tried to install V8JS with this Dockerfile

I've been working on a project using the v8 C++ library, I used to compile it with a Makefile, but to the extent that I'm using CLion and I wanted to debug, I had to use a CMakeLists.txt file.

The problem I have is that the Makefile is working, but not the cmake...

Here's the Makefile:

I'm getting tired of error when trying to bundle install and install therubyracer. I've tried everything from around the net and nothing helps. Already installed libv8 and x-code setup. Appreciate your help!

After command sudo gem install therubyracer -v '0.12.3', I'm receivin error: