I have a data frame which I want split into several elements of a named list by filtering by year and selecting a single variable.

df <- data.frame(year = rep(2010:2020, times=3), x = runif(33))

What I want to get is something similar to

yr2010 <- df %>%
    filter(year == 2010) %>%
    select(x) %>%
    as.matrix()

yr2011 <- df %>%
    filter(year == 2011) %>%
    select(x) %>%
    as.matrix()
...
yr2020 <- df %>%
    filter(year == 2020) %>%
    select(x) %>%
    as.matrix()

df_list <- list(yr2010=yr2010, ..., yr2020=yr2020)

How can I do that?