Agree, I developed a 150K line stock analytics Saas that started with the will to provide my son with some tools to analyse stocks.

I enjoyed this experience of CLI coding so much that I developed Market Sentiment parsing 300,000 business articles and news daily, a dividend based strategy with calendar of payouts and AI optimised strategies to extract every drop of interest, an alert system for a strategy you backtested in the playground and its key triggers are tracked automatically so you can react, an ETF risk analysis model with external factors, all quant graphs and then some, time models with Markov, candlestick patterns, Monte Carlo simulation, walk forward and other approaches I had learned over the years. There is much more.

I know you don't measure a project in terms of lines of code, but these are optimised, verified, tested, debugged and deployed. There are so much features, because I was having fun and got carried away. I'm semi-retired and this is like having my web agency back again.

I used to program in GRASP... I have a data scientist certification, did a lot of Python, Machine Learning, NLP, etc. I really enjoy the prompt based development process as it seems like you are reaching the right resource for your question from a staff of experienced dev. Of course you need to check everything as a junior dev always creeps in when you least expect it. Especially for security. Discuss best practices often and do your research on touchy subjects. Compare various AI on the same topic. GROK has really caught up. OpenAI has slowed down. CLAUDE is simply amazing. This AI thing is work in progress and constantly changing.

I have a noticed an amazing progression over the past year. I have a feeling their models are retrained, tweaked on our interactions even if you asked for them not to use the data. The temptation is too high and the payoffs abound in this market for the best AI tools.

I'm building a code factory now with agents and key checkpoints for every step. I want to remove human intervention from multiple sub steps that are time consuming so I can be even more productive in 2026...